: Im covering a skin on fram with 4mm ply.
: Is there a preference for the overlap at the chine?
: The shear will have the deck overlapping the sides with a covering
: bead
: Thanks
: Niven

I'd butt them together and overlap both with fiberglass tape. That's a very standard and well established method.

There are some good building tips, here: http://www.clcboats.com/shoptips/

And there are numerous books on the subject - check out some good ones by Harold Payson, Chris Kulczycki, Sam Devlin, and Jim Michalak, to name a few.

Good luck!
Dave