Good tips on measuring your lines Terry. BTW, you're not the only one that's anal about things fitting just right! I also concur on the Eastwood flaring tool. It is indeed worth every penny! I bought mine several years back. I guess my timing was a little better. I got it on sale and with a discount on top. IIRC I ended up spending $179...waaaay too good to pass up. Right now they have it listed for $189. I also got in on their intro deal when they started selling the 37deg die set for it. I paid right at $50 for it, though it's currently $89. Dunno if I'll use it, but if I ever have to do some AN fittings, at least I can do some (up to 3/8" that is!). Keep up the good work!