Phil, I have not built either and do not plan to after one failed attempt. Don't misunderstand my comment re Willie's plans though. I don't think his CP plan is good bcause of the flaws introduced by photographing, not scanning, the Berkeley plan. Even Willie admits this. The MM redrawn plan though, looks very good and I would bet on it making for a good build. You can see what the original Air Trails plan and the Willie redrawn plan look like at http://www.*****************.com/about42.html. I note that Willie is ill and may not be with us much longer. That may mean the loss of a lot of very good reconstructed plans.
Joe