Been using one for years off and on.Cant get along without one,not hunting anyway.I also get the alm.one,and i get real nice groups with it even with carbon arrows,witch buy the way,is all that i shoot.Never wore one out and never had it freeze up.Like bscman,iv had snow and ice all over it and i tried shooting it like that,it shot just the same.Most of the time i just touch the whiskers and the ice falls off.The speed is 2-5 fps.less depending on how much heical you have on your feathers or vanes.As far as vanes go,i find that Blazers preform better than most,without messing up your vanes.As stated,put a drop of glue in front of the vanes,and a drop in the back,in case of an arrow going almost through.Cant say enough good about them,[Blazers,or Bisquet].pan.