[L473ncy]

My personal thoughts on the first one:

The original TK Twist barrel relies on some pretty precise engineering and tight tolerances in order to properly make the "cushion" of air for the BB to "float" on out of the barrel. So clones with looser tolerances aren't going to perform as well just because they need to cut costs somewhere. In fact it might perform worse than a kinked to hell 6.08 barrel but it might perform badly consistently (ie. BB always curves in one direction or right no matter how much you play with the hop up and cant the barrel and such).

As for the second hop up bucking. That's an "H" bucking and already been done before so it's nothing new. In fact there's the Concave spacer now too (SCS/Shredders Concave Spacer (the original) and the PCS/Polarstar Concave Spacer too).