Agreement from here, a Dovetail Tenon should be wedged from the inside (or how would maintenence be effected ?)

Here's a capable crew framing a roof system with a kicked overhang - Lots of work in it - Fancy for fancies sake is silly, but some things are just worth the doing !

http://www.youtube.com/watch?v=uFB4t-MAD_Y&NR=1

"We build too many walls and not enough bridges" - Isaac Newton

http://bridgewright.wordpress.com/