I am working on my own conversion of L5R to Genesys, and I feel like the setting's mood and history works well for Talent Trees rather than the free-for-all like in basic Genesys.
However, while I am currently working on creating general Specializations witht heir Talent Trees, I started thinking about making the Clan Schools.
I can see several options:
1. Each School get's it's own complete Talent Tree.
2. Each School only gets a few Talents that are unique to them, and reinforce their theme, and they need to get a general Specialization.
3. Each shcool gets half the normal Talent Tree, and each such Talent Tree is connected to a specific general Specialization.
4. Each School gets a bigger Talent Tree than normal, to accomodate their themes better.
The problems I see are mainly where some Schools do no correlate directly to any of the general Specializations I have. This mainly happens with the Shugenja and Monk Schools.