Has anyone else been experiencing bolt sticking? I think that the Alabama heat and humidity has made the delrin bolt swell such that it's sticking. Anyone else notice a problem? I've sanded the bolt a bit once already and it's sticking again. Anyone else have a suggestion?

Are you running an E-blade or Raceframe? If so check to make sure the bolt isnt rubbing against the eyes. Also try "backing" your ball detent out a smidge.

Thanks for the tip. I think I solved the problem. The pump arm was a touch too long causing the sled to hit the back and lift up a little bit. I think this was the reason the bolt was binding. Well, that's the hazards of a totally custom gun. Once I fixed that, a little sandpaper and now we're ripping away.