IMO, it depends on what your shooting style is, example: I shoot a straight feather and have since I started bowhunting but my set up is a mech bh and they fly well with the straight feather. I tried to use some fixed bh's and I couldn't get them to fly with that fletch, so I fletched a few arrows helical and they flew better with the fixed b/h. This has been my experience with them....Good Luck
__________________
TBH,
http://www.camospace.com/signup/friend_TexasBowHunter/
"LUCK-is where opportunity meets preparation"
and "P.E.T.A. Sucks"
Blazers work great with an offset, that is what I am currently using right now. And they work just as well or better with a helical. What you have to remember is the blazers have a higher profile and are much stiffer than the your normal 5 inch vane so they control better. As far as control goes I like my blazers just as well as feathers. Not very forgiving though because of how stiff they are.
In my opinion putting blazers on with a straight fletch is a waste though.
Paul
__________________
I didn't climb to the top of the food chain to eat carrots! (Ron White)
arrows fletched wih a helical will out perform those without a helical,period.You may lose a little speed but the advantages of a helical far exceeds the min.loss in speed.