Apologies if this specific topic has been addressed before/elsewhere.
Like some of you, I absolutely despise the Vancian nature of certain spellcasting classes, and I am soliciting comments as to what I see as a reasonable answer to my "problem", i.e., adapting the spell/conjuring drain and spell sustaining mechanics of 3rd or 4th Edition Shadowrun to Pathfinder.
Because Pathfinder does not use Shadowrun's wound modifiers (drain) or die pool modifiers (sustain), my initial thoughts are to couple the drain and sustain mechanics to a corresponding pool of points, conceptually similar to the 3rd Edition D&D psionic power point mechanic. Refresh rates would be specific to a particular pool (e.g., Sustaining Pool would refresh at the rate of 1 point per minute, Drain Pool at the rate of 1 point per hour).
Anyone use or try anything like this? Are there any "big picture" issues that I should be aware of?