:shrugs: I'm not up to defining it. That's out of my league. If we're in the quoting game, I'd say "I recognize it when I see it". When one Minor virtue provides a +12 bonus, when all is said is done, and another provides +3 - that's unbalanced. When Art scores are supposed to be limited by Twilight yet that limit isn't actually implied by the Warping/Twilight rules - that's inconsistent. I'm trying to make the game cohere better with itself; I'm afraid it doesn't seem like others share my vision of the problems, let alone the solution...
My starting point is to preserve the power-level maintained in the previous thread. Turns out some virtues need to be toned down to do that, hence I'm toning down. I didn't start out with this goal, or with Virtues, and I don't care if the power goes up or down. I just want better consistency, and my analysis says (25%) Affinity is still so powerful these virtues need to be toned down.
Actually the power level in my recalibration is increased - from top Arts at 40 to top Arts at 60.
Wait - it doesn't apply to Arts? That changes things.
Sounds right. I'm not dealing with companions/grogs in this calibration - working on magi alone is more than enough work...
While that is certainly the case, I think balancing should be done based on taking slightly-unreasonable assumptions. If Free Study is essentially available, if a saga tends to allow its use, then it would unbalance the numbers. So, I'm adjusting values based on that.
Personally, I'm in favor of "flowing" with the players. If a player has Free Study and wants to use it, in any saga I run he could do so. It won't really be a difficulty - it will be a source for adventures. Which is an entirely different thing.
Free Study, under my system, gives you +2 XP per Season, and can be applied to a LOT of seasons; when all is said and done, this would translate to something like +3 to your major Art score (I think), plus a little more to some others. Raising both Stamina and Intelligence to +5 from +3 will require 4 virtue points, which is already more expensive (and is stretching your point allowance thin), and garners you a grand total of +2 to all lab and casting totals. That is not that far-off from each other, and doesn't scream "unbalanced" to me.
I won't touch Personal Vis Source - I haven't considered it yet, and need to.
I think the point here is unintended consequences, rather than "too mechanical". There is no "wrong, bad fun". If the troupe wants trade to be easy - good for them!
Under my system, the important point for NPCs is to have about 10 XP per Year at most - as explained in the previous thread. I'm calibrating on the assumption that the PCs get the same level of source-access as NPCs, and let the SG worry about the style of arranging that - or the implications of deviating from this setting assumption.
And making BL and FS reduced bonus AND Major Virtues? That´s just not balancing. That´s making them useless to a silly degree.
What are the saga assumptions that make it so? Why are the bonuses they effectively provide lower than the ones I estimate?

I tend to prefer the other direction as well, simply because then magi doesn´t have to struggle to develop, and can instead spend more time doing "fun stuff"
Again, I'm not wed to any direction - it's just that increasing power too rapidly is what I'm trying to avoid, which led to me weakening stuff more than strengthening it.

Crunch is fine.
The pursuit of "balance" is a pipe dream - to set the value of each virtue/flaw equal, ignores the wide variety of situations that can crop up in games
Perfect balance is a pipe dream. But what's wrong with making the system more balanced? That's all I'm trying to do - not achieve mythological levels of balance. I acknowledge there are varying circumstances, but one can still draw out the bounds "standard" ones and let those playing non-standard ones toy with the numbers themselves. This is how the core rules' Virtues are balanced anyway, as the text itself says. I'm just saying that balancing could use a little tweaking. By your logic - the core book's balancing itself is folly and we might as well distribute the Minor/Major division randomly...

The BL i run with has a +4 bonus and it was never considered a "must have" or something like that by players here. Maybe 1/4 of PCs had it. Probably less.
And whether that's wise or not depends - on the saga. The point of the recalibration, however, is to make choosing BL not be mechanically superior in a "standard" saga. Note that even if it is mechanically superior, many players won't take it - I, for one, often go with flavor over mechanics. But I still think the game would be better off if it would actually not be mechanically superior.
I am suggesting that if the magus takes BL as a Minor Virtue providing a +4 bonus, as it appears to be in your game, and if he gets to use that BL on lots of books as implied by a long career with a setting with as many books as are implied in canon - then the benefit he will get from BL will be mechanically significantly better than the benefit he would have gotten from taking an Affinity in his key Art (say). In short - I am suggesting BL is unbalanced. Not that it's a "must have", or that it will always be amazing regardless of saga or circumstances.

Bad move bunching those three up like that. Your reasoning is technically good for study totals, but spellcasting and lab total bonuses are not at all directly comparable.
Aren't the bonuses to Arts still reflected in them in the same way? Why aren't they comparable in the sense of the impact Virtues should have on them?
I would consider giving the casting and lab bonuses a one step higher bonus. +4 should work if you base XP bonuses at a base 3. Or just remember to keep them feeling a small notch higher.
I don't understand the reasoning behind this suggestion.
Suggestion, simply use Greater Affinity as a Major version of Affinity, giving the normal 1/2 bonus to XP. Also, although i use very different numbers, i have found that making a Major version give roughly twice the bonus of a Minor Virtue is nearly always a good starting point.
That will undermine the balance, as the Major version will then lead to a +12 bonus which will in turn lead to higher historical Art scores and power level, which would in turn lead to higher level summa.... pushing the whole power level up. Significantly. I don't think that's wise, given that the power level is already extremely high.
Who would ever want to pick [Book Learner] if it gives +2 as a MAJOR?
Someone that cares that it provides it to lots of seasons on lots of subjects, and that games in a game where Affinity provides +2.5.
Did you forget that [Free Study] gobbles up Vis? This is not a commonly used affinity even as it is. Making it Major kills it completely. You could make the bonus +6 and i would still just laugh at it if it´s a Major and instead pick 3 Affinities or Puissant, Elemental Magic or Secondary Insight if i just wanted a boost in power.
If the Virtues are balanced right, you wouldn't really have any benefit for choosing that.
Consider allowing a version of this, at +5 but only valid for EITHER casting or lab. It´s a very nice option.
I'll consider it... A bit powerful, but more limited....