Good morning, I’m in a hotel room right now and I just scored an adjustable slim and a super adjustable 84 on eBay. The slim looks fine, but the super adjustable 84, at least from pictures, indicates that it might require a tuneup. I’ve seen the YouTube videos. But, does anyone have personal experience with the tuneup at razor Emporium? The price seems worth trying, but I just wanted to see what others thought of as opposed to comments in YouTube section. Thanks in advance.