True, but I bet their "injected polymer" isn't fast like "speed foam". That speed foam stuff is fast! WHEW!
You know, I happen to have a set of hollow-body "blade" like irons with an ultra-thin high strength cup face. While they do not have (trumpet fanfare).....SPEED FOAM injected, I do know that if the label/badge on the back accidentally falls off, there is a little hole there. I bet I could speed foam those babies right up. I need to go research foam to see which ones are fasterist!