I have always shot a 30" draw length with a string loop but the guy at the local shop has always insisted that i have a 29" draw. He clamied that my form wasn' t as good as it could be. I recently bought a new Hoyt Dynatec and took his advice and bought the 29" draw and installed a string loop. I' m shooting great groups with it with both field points and broadheads but my concern is this. When i' m at full draw anchored in the corner of my mouth with my bow arm bent slightly the bow has the tendency to creep forward before i' m ready to shoot. It doesn' t happen on every shot but maybe 1 out of 5 times i draw. My last bow was 80% let-off and this one has 75%. My question is do you think my draw length is to short and i need to go back to 30" or should i continue to adjust to this new form? Could the 5% difference in let-off be making the bow creep forward? Thank You!