Yes they are sensitive, but it's an easy cure. Work opposing panels together, face to face. As in cut them, fair them, drill them. That's it. Piece of cake, done. No need for comparatively complex, bulky and difficult strongbacks. Like I said, I did the whole thing in one afternoon. Going in one afternoon from a stack of 4x8 sheets of plywood to complete cutouts, faired, drilled and sitting under cinderblocks being butt jointed. You can't get much faster or easier then that.

You keep erasing the key though. BATTENS!!!

> I keep hearing about the sensitivity of stitch and glue to panel
> errors. In Kulczycki's book he even suggests stacking left & right
> panels to drill stitching holes exactly symmetrical. There must be
> a way to reduce this risk of error. There are some good minds on this
> bbs. The best I can think of is using a strongback and forms and 1/2"
> stringers along the chines. The result is a skin on frame boat with
> a plywood skin. You lose some of what makes stitch and glue desireable
> in the first place though.