Originally Posted by JohnK

The problem is that the riser in the grip area on the Helix is thinner than the Matrix or Aerotec, and therefore it is impossible to modify the grip to match the Helix. As for damping, I've shot an Aerotec with fast limbs and I'm pretty certain I'd have to add a stupid number of dampers to take the shock out.

I suppose Hoyt could redesign the Aerotec a little to thin down that area and beef the riser up in other places, but I doubt they'll bother.