Wis Bow Hunter, when I bought the bow at the shop we went through 4 kissers in about 6 shots! They were blowing right off the string. I found that the really soft ones work better that the hard plastic ones. I really don't mind loosing a few fps if I can hit where Im aiming. I am used to it and I shoot better with it.
Something is going on that shouldn't be. Makes me wonder if the string has too much overtravel and slams the kisser into the riser or rest on every shot. There is no other reason for kissers to break like that. Make sure your axle to axle and brace height measurments are close to factory spec. Also, you might try shooting some heavier arrows and see if it helps the service life of your kissers or, if going to a heavier arrow is just too repugnant for you,get one ofMean V's string suppressors.