Ah yes, I remember too well when my oldest was 16. At 25 she has a better understanding in fathers. My 22 daughter used to race Dories with me when she was your daughters age. Now she loves the swing bike and that Moon Eyes Dyno I flew back from La Jolla last June. I'm setting up to make a few more in a slightly different style build. Good luck with your sons and your swing bikes and don't forget pictures of the builds.
GL
GL
