You wanted to keep Memory at 10, but increase the usual memory cost per skill from 1 to 2. The reason for cutting +Memory bonuses on items in half is because 1 point in Memory is now worth twice as many skill slots (from 0.5 to 1). Which approach is the more elegant one is up to personal opinion.
Also, Ability points spent in Skill-trees should add Skill-tree specific Memory.
For example: Memory 10 character with 2 points in Necromancy has 10 Memory for use with any ability, and 2 points that can only be used for Necromancy spells.
I haven't fully made up my mind one way or the other on the idea that points into skills increase your skill slots by 1 for that skill only. One point into a skill-granting ability gives one specialized slot. So 1-5 special use slots. That would allow for splashing of points, but powerful skills would be unavailable without specialization.
Yeah, that sounds okay. It might be a bit tricky to code, figuring out "okay for this 4 Mem skill, the first two slots go into the free slots in the specialization, but the other two require two free slots in the general use category".
If that issue can be solved, that sounds like a good plan.
