Tony, Concerning the fuel sight tubes, this is an issue that has me so angry that I don't dare respond in public. I had mine changed at my annual in May and they immediately clouded over and hardened. I informed FDUSA, and Tom Peghiny personally of the problem. I sent him a piece of the old sight tube in June. The defective tubing was marked "Rehau Raucl Air". He suggested replacing it with Tygothane C-210-A 3/8"ID 1/2"OD, which I did in June. The new tubing is still clear, flexible and working fine. I still don't have formal approval to use the new tubing even though I've bugged him a couple of times. I am royally pissed about the whole thing. This is a safety issue and FD appears to be just sitting on their asses. You have to do what you have to do. If you can swing by Yolo County Airport, I'd be happy to give you a couple feet of the Tygothane. If you like you can give me a call at (530) 204-8473 or email jstewart@jkmicro.com. Best -jim