Back in the early '70s, I had an SG with P90 pups. I think it was a '62, but I don't know for sure. I only kept it long enough to find some other sucker to sell it to. It sounded wonderful, but the neck/body joint was scary weak! It was a hardtail, but it was nearly impossible to tune, because tightening one string would loosen all of the others. And just turning suddenly was enough to make everything blur. I was deathly afraid the neck was going to snap off before I could get rid of it.