I have an approximately decade old '61 RI and an "SG 60's Jr." - the single P-90, wraparound bridge model they made a few years back that has modern body and neck construction combined with sorta-6o's looks. I love them both. One big difference functionally is that the neck on the '61 RI has the rigidity of well boiled spaghetti. Not to mean I'm worried about the neck breaking, just that it really is bendy. So much so that you don't need a Bigsby to get vibrato action, just bend the neck! When I tense up the guitar goes sharp. The Jr. neck isn't really much thicker than the '61 RI but is far more rigid. Try a few SG's before deciding. I'm fine with the thin, bendy neck but you may not be.