Im looking to upgrade my rig and i can't decide whats the better head. i have a 4x10 8 ohm cab rated at 400 watts rms. i prefer the ampeg tone over the gk tone but i have a sansamp pedal and i feel that gets me a very good ampeg tone. i can get them for basically the same price. i want an amp that wont clip easily, i play punk and i use a pick, ive tried both heads and it kinda comes down to which amp can handle my aggressive playing and whats more reliable- things you cant find out at gc. Ive read that theres some issues about the pf500 blowing up but ive never heard of 700rb problems. i have a gk400 and i like the fact it never clipped once unless i cranked it past its limit, but i need something with more power. when i tried the ampeg pf500 it seemed to clip easier than the gk when i played more aggressively. so what do you guys recommend