Great insights. Bottom line is that I'm inexperienced with assessing sax problems. SInce sax is a hobby, I cannot personally justify a $1000+ horn with 2 sons in college. The. RH keys seem sluggish compared to the YAS 23 loaner I got. The Yamaha also seems to provide less resistance to air flow, if that is possible.Also, I'd be reluctant to assume that a new-to-you $400 'used' vintage horn is going to be less expensive than your 1951 PanAm. I provided the first response on this thread. In that response I gave an example of one of my horns that actually needed a full repad. That was a reference to a brand new (to me) vintage horn that I purchased from a local, reputable shop. Bought it for a bit over $500. It came with a 1 year (useless) warranty. In my opinion, it should have been in perfect condition, but it wasn't. It needed a full overhaul, and it took me a long time to admit to myself that I got screwed by the the seller and the bogus 1 year warranty....That $500 horn ended up costing me about $1,200. I was livid. At the same time I am thrilled with its sound now that it has been fully overhauled........In short, trying your luck on another used horn, may not turn out the way you want. Your Elkhart built PanAm is a very well built horn.