Rob, when Blazers first hit the market, I was a bit skeptical....So, I fletched up an arrow w/ 5" feathers, and one w/ Blazers. Tipped w/ Magnus Stingers, and other than the fletching, same arrow.

Shot the feathered arrow into a deer @ 25 yards, then the blazered arrow. Cut a feather off the first arrow. Yes, they will group the same.