While 100% true, they are a OOTB head. Before TF, this wasn’t possible. The initial spirt of the thread, the idea of a stock port and as fast as you have been with it. Save money on porting, to fast! LOL
Prior to TF, ProMaxx would get the chink head and CNC port it, resell it. That isn’t exactly the same IMO as the TF head because that’s the only way you get the TF head.
Thanks!