If you need a higher deflection number with Spirals it means a loss of DW when not changing limbs. The higher deflection is stiffer. :wink:According to Hoyt the Cam 1/2+ requires a higher deflection unmber to gain the same poundage as the spiral. So if you have a given deflection number and put a spiral on the bow you will gain poundage.
Call Hoyt to verify.