So, next question.
Vis usage when pretending to be a sahir, particularly for initiations.
As considered previously (https://forum.atlas-games.com/t/initiating-solomonic-arts/11619/1), initiating into the Solomonic Arts gets very expensive in vis very rapidly, especially if you want to avoid gaining a major flaw.
For his first initiation, he'll probably just end up with the major flaw, as he doesn't know enough to avoid it.
For later initiations, he's going to want to avoid racking up 6 major flaws, because he wants to be able to actually function. This could easily take 20 - 40 pawns of vis, all of one form. Based on the standard advancement rules, he can use a maximum of Magic Theory x 5 pawns of vis a year, so using 40 pawns of vis would require a Magic Theory of 8.
That's actually very doable. It does however make very little sense that he has to pump his magic theory in order to be able to feed more vis into initiations. Do we just handwave it and go with the standard rules?
(Obviously there's also the question of how he explains to the Suhhar where he got the vis from, but I think that's a separate issue).