Hey guys, thanks for the feedback, I knew I'd get some good responses here! So I had a spare half set of Wilson NXT lying around this morning and I just blended it with Babolat Duralast (a really cheap poly) and I'm going to test it out. I didn't get a chance to read your posts before I did it, but no biggie.
My friend has a Head Radical at my house now with Babolat VS mains and RPM Blast crosses and just the sound alone of hitting it on my hand is different from the blend that I put in, so I definitely feel that there will be a difference in feel for guy/poly and multi/poly setups. I guess I'll find out soon enough...