Thanks Ed.

Actually my question was prompted by the truss series. re: issue 73 and the kingpost truss engineering addendum: in the Lynnfield truss model you site steep bending stresses in the braces (meaning inner rafters). Here I'm talking about a kingpost truss with similar span, but no inner rafters. I'm sure that a steeper pitch will reduce bending stress in the rafters, but on a 12/12 pitch the struts would not be that short (as per your post), so hence my concern...

Thanks again for your reply