Thanks Rick. I've been exceedingly busy and have only so many hours in a day so haven't had time to visit Brians domain in some time. Glad to see you regular guys are still so active! I'm not sure I like Brians new (to me) format but then I always was resistant to change...
The roof deflection problem is addressed in a publication that can be read at:
http://www.gp.com/BUILD/DocumentView...elementid=3194
It also says, in part, bowed trusses should be braced straight and shims or planing should be done to achieve a flat surface on which to attach roof sheathing. I don't know about you guys but if I saw a contractor install shims or plane a truss to achieve level in order to achieve a nice smooth roof afterwards, I believe I'd drop dead right on the spot out of shear shock!
See ya.