HPA, worth every dime and nickel. I play year round and got tired of seeing large puffs of white during the winter months and cold evenings/nights. I haven't had a chance to really shoot co2 vs hpa back to back and see the difference for myself, but the weight difference of the tanks alone is sweeeet.

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"I was getting ready to move up when I heard a voice call out to me and say 'Don't go there.It's a trap. Go back.' and it scared the *crap* out of me. so i went back because when a bush talks, you do exactly what it says." -Teammate recalling when I saved him from sure slaughter.