I love my '57 AVRI P except for the big neck. I've tried to sell it but no interest unless I want to give it away. I was playing a Roadworn P at a local music store today and liked the neck which seemed thinner (is the neck actually thinner on these?). This got me to thinking. Perhaps I should just buy a thinner maple neck instead of shopping for another bass. What specs should I be looking for? I think the '57 is 1 3/4" C shape. Any ideas what my options are? Perhaps just a std American neck? I'm not stuck on the nitro.