Ive been shooting the airrazr 23 in a 4 fletch configuration with a 2-3 degree offset. Have shot out to 60 yards with a QAD exodus with no issues, and have shot out to 120 yards with the original 1.5 and 2.0 Sevr. The Sevrs shoot great out too about 100 yards, beyond that i have noticed some occasional weird arrow flight.
I have heard of some guys trying them in a 5 fletch and they are supposedly more forgiving at those longer ranges, i have yet to try that though.
In my opinion they are a great vane, incredibly quite, and for what its worth i believe they have less wind drift in my redneck testing compared to other vanes.