Richard,
Sounds like you have a handle on it. I used the appropriate hole saw wrapped with the adhesive backed sand paper to ream the T for the head piece.
My sheeting arrived, was weighed, sorted, and glued by 3:30 PM. Now I just have towait for the glue to dry. Probably until tomorrow morning. I'm guessing it will take me most of the day tomorrow to get all that sheeting fitted and glued to the wings. I am glad I ordered four more sheets than I needed as it turns outthat exactly four sheets were so badly curved on the edge from end to end that they were virtually unusable. They might be okay for ribs or some such thing. The weights ranged from 16gm. to 28gm., nine of whichcame to 22gm. All in all it comes to a substantial weight reduction over the kit supplied sheeting.
For what it is worth, I think Jeff is correct in the way he has packaged his kit, since doing it the "light way" has added another $170 to the kit price. From a marketing stand point contest balsa and CF tubing would probably not appeal to anyone but the competitive pilot or fanatics like us!

And that extra cash doesn't account for other lightening methods that I haven't used(contest balsa for the fuselage and tail feathers, etc., etc.).