: My opinion... You are there. Unless your string is 1/4 inch rope.

:-) I don't have the diameter handy, but it's regular ole string, maybe about 1/16 diameter or so.

: I'd guess you have already begun to lay down the strips, if not then I would
: start...

Again, nope. I plan to mill the boards this weekend, and have the first strip on soon after. The boards are so long, that by the time I get 20 feet of infeed and another 20 feet of outfeed on my table saw and router, I need to use the driveway. Over the past few weeks, we've had rain on the days I was available, and clear skies on the days I wasn't. So, the lumber is still in full width planks. We're supposed to have scattered showers this weekend, so hopefully I can find some dry time between showers and make some progress.

: Still, if you are arguing with yourself about measurements that fine, you may
: be an artisan yourself.

I'll let you know in about 6-9 months. :-)

: Of course, as soon as you staple to it or use
: the form as a base to clamp to, you will move it a little... so just
: begin.

That's exactly one reason why I was hoping that I was close enough... it's going to move a little anyway, once the pressure of the bending strips is applied to it.

Thanks a bunch for all your help!

Rick