Mike, the red is from your post:

With a shorter line you can fish most of the line at still cast. With a longer line you can only fish a certain amount of line say 6 to 7 ft.
Thanks, mike, you hit the nail on the head. If that short distance, 6-7', is all I'll be able to fish a fly, then the extra length of the cast is not worth the trouble. That might work for bass bugs (bass usually strike close to where the bug hits the water), but certainly not for a streamer fly.

I know that tenkara has its limitations, and this seems to be another one. I can accept that. I do thank you for taking the time to write such a clear and thorough response. Very helpful.

For me, it's happily back to tenkara using shorter lines.

~Paul