So i was looking around and noticed other than the typical striaght line milling done to the USC, Ive only ever saw staggered holes for vents. Now i know when making the swap to a UMP, youre shooting for as close a copy as possible. But why not go original? Anyone ever mill the vents, using like 1/8" diameter, inch long vents, running at 45degrees? cheesy? too difficult to mill? Any opinions/Photoshops?