Copper Nemesis (copper tobh) hits pretty hard, Stingray X (kayfun) hits just as hard.( both with sony VCT4) The AR clone (Russian 91%) is actually suprisingly a hard hitter as well VCT4 as well.. Stay away from the Manhattan clone, it's terrible and the voltage drop is horrendous, I'm using it right now with a nautilus just for an everday hitter, plus it wont fit right with sony batteries, I use a samsung flat top and still have a gap.
it's all good though it was a cheap experiment, Gonna order a FUhattan when money always, and I have a provari mini on the way.