Coming back to my character after several months' absence, I'm making a few minor changes; though she has a good CrAq attack spell (and will invent another during her 7 years post-gauntlet), Aquam is actaully not a big part of her build, though it does give her a good second 'tine' for certamen. Based on this, I think she makes more sense as a Signaller than as a Scout within the house, since her spells and arts allow her to communicate information rapidly via maps, illusions and mental messages.
To this end, there will be a few changees to her backstory and a change in spells; I had originally planned for her to use Human Figment of the Waking Mind (pg 32 of A&A) as a way to communiate one-on-one with individuals, but that would be very hard to accomplish without putting a ton of xp into Concentration. I now see Amphora being more about rapid bursts of information than extended conversations, so I might drop her Concentration entirely for now. Between Phantasm of the Talking Head and Exactly to Scale, she has other more intriguing methods of expressing herself that don't require Concentration, though I admit they will present interesting roleplaying challenges amongst her sodales. In the mundane world, she just passes herself as a mute, which I imagine might have the effect of folks getting chatty around her almost unconciously, as they tend to forget she's around (we'll see if this actually happens in play).
Getting rid of HFotWM frees up 25 spell levels, and Look at Me, from the same page in A&A as the previosu spell, really intrigues me; not only can it set up Eye range Mentem spells (which she plans on learning in the future), but it can also direct attention away from a comrade and onto Amphora or allow her non-verbal signals (I see her using hand gestures and/or small colored flags) to be seen by a comade some distance away, without having to shout to get their attention. Due to Parma, this tactic would mostly be of use in dealing with grogs and other covenfolk, but for a Tremere in the field or in battle I think it would be a big help.
Not sure what I'll do with the other 10 spell levels; possibly some Creo effect to create puffs of colored smoke or light for long-distance communication.