Are you sure it's chopping, and not barrel bursts caused by using a too tight barrel/insert for your paint?
I've used a freak factory vision, with my knackered old hopper, and didn't chop a ball.
If you have been bursting a lot of balls, even with the vision ee on - there's the possibility of the eye being dirty. I won't advise you how to clean it, as I don't know how to do it properly, and that way you can't blame me when it breaks