I guess there should be no way to increase the astral power regen for druid other than the base recharge and casting spells to recharge them. Just wanted to confirm this fact.

I set a toon rotation cast to for stallfall (over 4 char) to just farm some mobs for items i need, but i find that sometimes i lack the astral power to cast SF and need to wait like 10s before i get 40 to cast.

while i see some perma farm team seem to be always on SF?