I would mainly be looking for any lines to me modified/created to make the frame blend in with the rest of the gun. Maybe round the back by the noid inserts to match the rounded back of the frame and stuff like that. That's how I look at things anyways is for how well the different parts flow together. That was my big gripe with some of the PL SFT's (shocktech and freeflow come to mind right away) how they looked like parts thrown together with no real flow from one part to the other. Heck, even the Nerve had a flow from the frame to the body with the milling. But that's just me.
I'm sure the owner of this one will be pleased with how it will turn out.