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