Hi David,
nice to hear from you and glad to hear you are still pursuing your study of koh-ko-gen. Feel free to post anything you want, and I will do my best to help you out.
If you are currently receiving the TF Journal, there is a series on koh-ko-gen that has just started. The first article came out in the December issue, and the second will be out in March or so. There will be 5 parts to the series or more, and it will progress from hoppers, to splayed-leg stools/tables, to hip rafter layout, and perhaps beyond. I intend to coverthe topic pretty thoroughly.
But meanwhile, please fire away with any questions or comments you might have. Keep up the study!
Regards,
Chris