Here's my GS 1.5.
Bought it secondhand maybe 6 or 7 years ago now (paid about £220, I think), and someone had replaced the wraparound with a Hipshot Baby Grand. It looked a bit fancy pants on the GS, and didn't do anything for the guitar's sustain. So, finally, the other week I got around to replacing the Hipshot with a heavy duty intonable wrap around, and fitted a cheap-n-cheerful unlicensed Bigsby unit. All that extra mass has really helped the GS come alive. I've been playing it non-stop ever since.
It's got a little bit of a Gretsch Corvette look about it now...which I'm liking a lot!