So i have the Steel Challenge JP5, which I love, got M-class, have been doing great in comps. But my friend bought the competitor which shoots much better for me. I really like the heavy MK3 with dissipatora nd the vertical comp. Im looking to either swap the parts out to make one, get a new upper, or sell the whole gun and just buy the other one. What do you guys think makes the most sense to do?