SNIP

knowing that some will pretzel before I get a chance to use them.

END SNIP

Pretzel; to say the least.  I was building a new shed two years ago, as time
permitted.  Used new nominal 2x6 timber from the orange despot for the rafters.
A week after they were installed the ends over the deep eaves had bowed in so
much that I had to use heavy bar clamps to move them back into place to have
decking screwed on.  I had misgivings, but that actually worked pretty well.
I've had a solid roof for two years now including the wettest winter on record.
Disheartening to see that wet wood bow though.

Joe