You guys are great. Thanks for all of the info. It's trial and error to learn....that's how the Wright Brothers got their first airplane in the air right. I'm going to concentrate on not using paper and doing it by touch, feel and sound. It's difficult to get any results as I get home after the sun goes down and my neighbors don't especially like the sound of my nitros running up and down the street for testing purposes.
This weekend I plan to take them out and carefully see how I've done. Drive, check temps, drive, check gears for any warping, heat or broken teeth. Lots of trial and error, but isn't that the beauty of this hobby. Hands on, learning and hopefully getting it right.
Thank for all the information.