NO!!! This may cause many problems with the bow and will not be covered under warranty. If you want one find another way. I have heard stories of risers breaking b/c of people modifying them.
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Eric
07' BowTech Guardian #70/ 30"/294fps
Trophy Ridge DZGS
Viper MicroTune (.010 and .019 pins)
Easton ST Axis (.340) w/ Blazers/ 425grain
TRU Ball (Short 'N' Sweet)