Force and gunner are decent subs for those with PP management issues (why I am Force/Gunner with Rod+rifle and rifle+rod) and yeah have zero issues with PP, it is near endless and normal attacks return huge chunks.
Homing Dart spam for mobbing and trash packs, TAs for Bosses.
Works well as I get no closer than mid range and can stay a safe distance away. As well been using Techter/Ranger for the melee and Ranger resistance is nice and PA followed up with a satellite nuke and wand bust point-blank range is fun as well.
It is more what you feel is best for you. Yes there is going to be a meta. There always is. But how it is going, you can build what you want and still be productive to what ever content there is(nt) and will be coming. Those stressing over the minut numbers trying to min-max theory craft just need to releax. Wait till we get past level 20 to be trying to suggest all players need that 1% extra dps to complete average Joe solo cocoon.