First off, I hope this is the correct place to post this..
I have a JT Excellerator 5.0. It has an expansion chanber on it, and an elec. hopper, but everything else is stock. I was wondering if this is a good setup, and what all I should do to it to make it better or what other marker I should get. I only have one problem with it. When I start to shoot fast, it starts chopping rounds. Then I have to leave and go clean it.. What could be causing this? Thanks.

Wolf

getting a new barrel is always a good idea. you could be chopping balls because your gravity hopper isnt feeding fast enough id recomend buying somthing like a halo, revvy, vlocity, or egg.

well he said electric hopper, but you really need something like an egg or a halo to avoid chopping if your going to be shooting at higher rates of fire w/o eyes

dud if your gun has good accurisy then your fin but if you sprayin and prayin you need a new barrel

lol. paint_king sounds like a 10 year old gangster. straight up.

but for choppin, its either your hopper isnt feeding fast enough and when a paintball gets half way down into the breach and the bolt fires forward its chopping your paintballs in half, OR your using cheap paint. your barrel isnt the problem, because you would chop every time if you had a bur in our barrel. but if its higher rates of fire, get a new hopper. buy a halo, save up, because they are the best you can get and wont need to upgrade later when if get a better gun.

hope i helped.