I have a rebel and a summit. I size on the rebel and seat on the summit. I dont think I'd use a summit as my only press, I would go with the rebel. The rebel has tons of room inside the 0 for your hands and large ammo and has more qualified surfaces than the rockchucker so its supposed to be more accurate, not sure I can tell though. The rebel is a great do all press, but paired with the summit it the cats ass.