As far as I'm concerned a Whisker Biscuit is the best hunting rest out there. I fletch my arrows with a blitzenberger(sp) right helical feathers with no problems tearing up my fletching. I set my nock dead level otherwise it will eat up my fletching.
just curious but why do u think the WB is the best hunting rest? im not saying u cant shoot a heli with them but its best to use straight fletch on them... u never know when it might mess up and it will allways be at the worst time
as for the shrink fletch, i used some for about 10min then cut them off. they are ok for spur of the moment quickfix dunk them in your coffee if your out and have nothing else but they arnt consistent enough for me to shoot all the time.