I just strung it up in full bed (Head YT IG Rad MP). 52 lbs. Played 5 hours with it. In a word: awesome. Very soft. Actually, it didn't even feel like a poly, it feels more like a multi. Its a little too powerful, but tons of spin.
I'm going to buy another pack and string it @ 54 lbs to see if I can get a little more control out of it.