Thanks fellas,
I just shot two of them with a Stos broadhead against a simular arrow in weight and spine but 3, 5 inch fletch. I did not use a chronograph so speed is subjective at best.
Results,
/ No noticable noise difference. ( son was at target in safe postion, could not tell which arrow was which, real quiet)
/ Both could hit a deer leg bone placed vertically in the ground at 17 yards.
/ Both appeared to have same velocity ( agan, no chrono so who knows).
Opinion,
/ No real result of significance.
/ I think the 4 flecth looks cooler - whatever.
/ 4 fletch MAY be more forgiving of bad release
/ 4 fletch does not make more noise at release even with more bow contact.
Anybody else ahve any info or comments they want to share?
Bob.