[tunabreath]

Sorry to bring this back, but it seems to belong and I'd rather not make a new thread.

My KSC Glock 18C is having a somewhat similar problem. When I crank the hopup all the way up(ccw), my shots arc upwards, and when I turn it all the way down(cw), my shots get sucked downwards, like antihop as previously described. I don't really mind this, since neither of those are exactly 'ideal' settings.

The problem is, in the middle, the first few shots (4-5) are dead on straight, but as I keep shooting, they start to sail upwards randomly, until all the remaining shots fly upwards. When I switch mags, same thing, first shots great, last shots horrendous.
Stalker, you mentioned that this may be a gas problem. Is the problem just that it's the middle of winter and my mags are cooling too fast as I shoot? I'm shooting pretty quickly without much of a break between shots.
Would lower velocity caused by lower pressure (cooldown+already cold to begin with) exaggerate the effects of hopup on same-weight BBs?
I haven't had any summer experience with my GBB yet (it's my first and I just recieved it recently), so I'm not really sure if this is to be expected during the cold season.