Hi all, I'm looking on Ebay for an upgrade horn for my grandson to play in high school. I have found a '98 Cannonball Salt Lake City alto in pretty good condition. My 2 part question is this: #1 Is this considered a pro model? (just curious) and #2 in one of the pictures of the gold keys I noticed some tarnish, as the seller calls it, and was wondering if this could actually be tarnish or does Cannonball have a finish problem? I have tried to attach a picture but I'm dumb as hell about doing it so if you need to look at it I can get you the item number. Appreciate all opinions.