I think he is having a shop do it, not doing it himself. There is no doubt he will lose poundage and efficiency, but at least it will fit him better. It should work until he can get something that actually fits him.

I have played with a few bows by changing string length by either twisting them up, or changing the string. Both adding draw length and taking it away.

I have never really seen that many tuning issues with it, they all shot well. I shortened my darton over an inch so my girlfriend could learn to shoot with it. I put a butt load of twists in it and still worked for a starter. It did lower the poundage quite a bit, but that was a good thing for her.

Paul