Currently on the artificer lines, and for that matter on the cleric lines was well. You get roughly 1 point of universal spell power for every AP spent. Many, incluidng myself, are doing the calculations and overall spell power seems to be getting a nerf without super heavy investment. I thought about this a bit and have a suggestion. Increase the spell power gained from from AP based on the tier and the AP invested. Splitting is possible afterall in the cleric heal domain you get 1 spell powr for light and 1.15 for positive energy per AP. So my breakdown would look like this:
Tier 1 abilities 1 AP = 1 USP
Tier 2 abilities 1 AP = 1.25 USP
Tier 3 abilities 1 AP = 1.50 USP
Tier 4 abilities 1 AP = 1.75 USP
Tier 5 abilities 1 AP = 2 USP
(numbers subjective to change until I log in and do the calculations of how much USP you would get from fully investing in 1 tree)
This would still help out multiclassers who only delve into a tree to tier 2 or 3 abilities and really reward those who fully specialize.
Thoughts?