I played a pretty sweet ASAT Special semi-hollow at the Sam Ash in Philadelphia while I was away on a work trip. Kicking myself for not taking it home with me, but I'm gonna try to make my own version of a thinline. Here's where I'm at: That's the top and back, it's birch. Using pine as the core. Here's part of the core I got hollowed out: For the core I didn't feel like dulling my router bits, so I just drilled a hole and used my jigsaw to cut out some holes. They're 5/8" on the edges, center block is 5" wide because I read that somewhere once and wrote it down. I'm using two pieces of pine, will do the same to the other piece later on since it's about time for supper. The G&L I played also had some kind of P90 lookin' pickups in it. I liked the neck position pickup, but the bridge just didn't do it for me. I might hook up a humbucker, but it's too early to say. Still don't even know what kind of bridge I'll be using. I'll probably just slap on a hardtail and call it good. As for the neck I'll probably just order an el-cheapo and file down the nut some like I normally do. Seems to work.