"Stan Premo" wrote in message
...
It might be like that old rag-top car we've seen tooling down the highway
with the fabric ballooning away from the metal top when the adhesive gave
way. The altered profile might change the lift characteristics of the
wing
to some degree I suspect.

The fabric lifting off the top of the wing can, and has killed people. This
is still not to say that it has to be stitched.

If loads on the surface are low enough that the correctly glued fabric stays
place, then all is well. Just make sure the correct techniques are used,
and that loads are low enough!
--
Jim in NC