Put a case-plus of paint through the RAP4 parts today. I've yet to do my teardown/cleaning, but I will say that I did not have a single incident of any kind...no breaks/chops/misfeeds. Every time I pulled the trigger, a ball was fed, even when holding the trigger for small 3-5 round bursts (r/t). I was able to really crank up the ROF when I did a little for-fun speedball with the kids...haha, they didn't complain until afterwards.

So my experience with the RAP4 parts is great so far. Has made a big difference for me.