New psi bar (reserves) - good, VERY good, now it is rly feel like self power, not bottomless well of some magick power. But no natural recover - is bad. It is just not logical, u can add some minor regen like 1-5 and it is will be enouth. Ppl will still use inhalant, but will be happy see some natural regen. Maybe even done some perks on it (with some mad story in Dude style).
Psi innarvate - not bad idea, but it is give benefits only to some build,where psi is support, not a main instument. But for pure psi it is rly bad, was fun use good amounth of skills for different situation. Pure psi was not best at start, now it is also veeeeery expensive, cost of inhalant is insane for novice, but good for midgame. Also now some psi skills like disruptive field become total ussles, just becouse you dont have slot for it.
Was better if you add some CD between psi schools - like neural swaping or wateaver. Anyway 6 slots is to low for pure builds, there ALOT of of ways to give ppls more freedom - like perks what trade hp for slot, or some other way.
Hope you will listen and done game even more great.
Cheers