there are many factors associated with 'hand shock', notably - arrow weight in relation to bow holding weight (gpp), energy transmission (the bowstring), bow mass weight, limb recovery from release, and the archer's bowhand grip.
low stretch strings are capable of transmitting more energy to the arrow, as long as the arrow has enough mass to accept that energy.
regardless of the bowstring fiber, if the arrow's mass weight is too low, the unused energy reflects back to the limbs and riser.
each bow, arrow, bowstring and archer is an experiment of sorts, and your results may surely vary.