Hey guys, First post but I have been lurking for a while trying to get educated so go easy on me. First let me say that I recently started playing again, taking lessons, etc. so I'm not a pro. Picked up a Taylor accoustic/electric for Christmas and it wasn't long before I was GASing for an electric. After some research here and other places, I picked up a new ES-339 (Vintage Burst) 30/60 neck today. It was still in the sealed Gibson box. Good News: The finish looks outstanding. No flaws that I can find. Sounds great. Just what I expected from what I have read here. Bad News: After I got it home I noticed one of tone knobs is very loose. So loose, it almost falls off by itself. Secondly, when I unplugged it, the nut around the input jack was a little loose. I tightened it with my fingers but I don't know if it will stay tight. I called the sales guy and alerted him about what I found. I'm taking it back tomorrow for him to take a look. On Wednesday, I have a fellow church member who is an accomplished player and currently owns an expensive custom made to give it the once over. Is it possible that it's just a bad knob and can be replaced or could the post be the problem? I was surprised that it's only held on with friction and not a set screw of anything. And what about the jack issue? I really hope these are minor issues that can easily be fixed because I really want to keep this one since the finish is perfect. I was set on the Caramel Burst, but seeing the Vintage in person, I changed my mind. Thanks for your input. Looking forward to being a part of the community.