Ive been shooting 160 glue ons for over ten yrs 55 to 65 lb bows, wood arrows or aluminum with flightmate adapters. Never a problem with tuned set up or the deer far enough away to stablize. (10 yds...ten feet is too close but the broadhead still penatrated both sides.) As for the "HISS", its a soft noise similar to a bird flying by, I have shot over my share of deer and never had them react to the arrow in flight but jump from the impact on the offside ground. Usually the deer stare at the arrow wondering "what the hell was that" then take off.