don't make any changes. I screwed up and I thought that people wold have treated teaching their familiar as a seasonal activity of their magus.
The idea is that the might/xp penalty does not apply when the magus is involved. So sending the familiar to a teacher or library would not count.
I will meditate and think of a solution.
Actually, you can totally ignore my familiar for this. Astrid can learn from anyone without xp penalty, unlike familiars with Magic Might.
Looks like I'm the problem child then. 
Making this change won't be easy, but I thought the system was much too generous anyway and generally agree that your new proposal makes more sense. I'll have to reconfigure most of Vocis's activities in his second and third cycles. I'd rather not update the itemized cycles in the development thread, because it's just more work and I'm not sure I can make everything fit neatly into those cycles. I'll also change Celeste from a Spring to a Summer creature so her other abilities are decent. Are you willing to allow familiars to gain exposure xp in MT for seasons in which they assist in lab activity?
Exposure xp is cool, as is dedicating (x) amount of seasons teaching or training the familiar (using the scores of the magus). And bumping Celeste up to Summer works fine for this.
It was my error, as I made unspoken presumptions 
Just a thought on a potential solution...
First, to make it easy, we assume that the familiar is doing whatever the Magus is in a particular season. And then we use the formula:
Advancement season-6 xp
Lab season (aiding Magus)-exposure xp
Vis wage season-exposure xp
The way I got to 6xp for the advancement season is looking at what that entails in the abstract. It covers adventure, practice,, learning from books, learning from vis primarily. So my thought was for adventures and practice, the familiar would learn xp as the Magus, but for book learning and vis study it would only get exposure xp (which I realize isn't always true but it's abstraction). So with simple math, if half the time is worth 10xp (Magus adventure total) and half the time is exposure worth 2xp, then that averages out to 6xp.
I think that puts familiar xp gain in line with what Marco was going for.
"K"
Mark
Or Marko, or Markoko
with "k"
There is no letter "C" in Greek 
Sorry, my bad. Typing on my tablet and didn't check before posting.
No worries
Just one of my pet peves. People often make the mistake of calling me Marcus, which also drives me nuts.
I like to extol my Greek heritage, but in truth I am just a Yank. The Greek Orthodox Church and the baptismal name are like little liferafts I cling to in order to say "see, I really am Greek!" But really, I am just a half-breed from a third generation Helenic mother. She qualified for repatriation, but I do not.
I don't even speek Greek (though I have been told my accent is good when I repeat words or phrases). My main language is English, and if I could be said to have a second language, it would be Spanish (though I am not that good at that either).
Vocis is reconfigured. I moved a lot of seasons around, but the net changes were limited to three seasons. I basically traded 3 seasons of Vim & Imaginem advancement for 3 seasons teaching Celeste MT.
I totally understand. If I had any sort of heritage beyond American mutt I'd probably be proud too. That said, did you have an opinion about the recommendation I had? 
Need to think on it. I am not sure exposure while the magus studies works.
If that's the case we could just say 5xp during advancement seasons to show that half of the time they are adventuring or practicing together. And of course leave open the option for the Magus to spend the season teaching the familiar if they want.
I've got a proposal. I spent 6 bps on a specialist; it was intended to be a glassworker to maintain lab equipment for us, but if possible I'd like to build the character as a glassworker who has skill as a venditor as well. Not a character I intend to play, just someone who's around and can barter and negotiate on Vulcanus' behalf.
Cool 
Does anyone else think Venditor really should not be a major virtue? It gives you 50 exp, just like minor virtues Warrior, Educated, and Well-Traveled... I can only speculate that they intended it as a minor virtue, but then decided they wanted Venditor characters to be companion level instead of grog, without re-balancing the virtue to be worth a major virtue. Compared to other major social status virtues like Redcap, Magister, and Doctor, it's really underpowered mechanically, and compared to the other major social status virtues like Redcap, Capo, Senior Guild Master / Guild Dean, and Landed Noble, it really offers very few social benefits as well.
I wouldn't object to changing it to a minor virtue.
I didn't see anything on companion level character development except Redcaps, so as she is Wealthy I just gave her 30 exp/year after childhood. She has the Guild Master social status because she needs that to practice her craft unsupervised; she can eventually function as a venditor in the future but she won't have the social status that the virtue confers (which is... NO social status).
Ava, Glasssmith and future venditor
Age 22
Once the young wife of the Guild Dean of the Köln glassblower's guild, Ava assisted her husband with many administrative and craftsmanship tasks. Eventually, as his health declined and the two of them had no children, Conrad taught his young wife as much of his trade as she could learn, so that she could succeed him. Of course, cultural mores being what they were, Ava did not succeed as guild master, but she did eventually become a master in her own right. She inherited Conrad's practices and sold the entire enterprise, seeking to strike out on her own.
Int +1, Per +1, Str -2, Sta 0, Pre +2, Com +4, Dex +2, Qik -1
Guild Master, Improved Characteristics, Puissant Craft: Glassworker, Unaging, Venus' Blessing, Wealthy, Great Communication
Proud (major), Difficult Underlings, Small Frame, Lost Love, Noncombatant
German 5 (Köln), Köln Area Lore 2, Artes Liberales 2 (15), Awareness (alertness) 3 (30), Bargain (glassware) 6 (105), Charm (merchants) 3 (30), Chirurgy (burns) 2 (15), Church Lore 4 (50), Concentration 2 (15), Craft: Glasswork (stained glass) 6 (105), Etiquette (nobility) 2 (15), Folk Ken (merchants) 3 (30), Guile (merchants) 3 (30), Intrigue (alliances) 3 (30), Leadership (journeymen) 3 (30), Latin 4 (50), Order of Hermes Lore 1 (5)
I may be alone in this, but I assumed you were going to write her up as a grog, not a companion. She's just a specialist that no one will actually play.
Don't Companions get their own character creation thread?
Also, I think once you stat them out, you don't have to spend covenant build points for them (if it's done early enough). That's how I've always seen it, anyway.
If you want to play a Companion Venditor, that's cool too.
I thought specialists were built as companions rather than grogs. I think I assumed that because Teacher specialists are always a favorite and only companion level characters can take Magister in Artibus. To become an official venditor later on she'd also have to be a companion (even though being an "official" venditor gets you no social standing whatsoever).
She can just as easily be built as a grog, she'd just be older without the Wealth virtue.
And no, I don't intend for her to be played much if at all, just sort of lurking in the background. So I can say "i'm going to sell this magic item to so and so, but since I have no bargaining ability I send an agent."