Well, I'm not sure if this helps...because it goes against the "don't bolt through the sip to the frame-post" idea, but I built a porch addition to a barn where the porch frame tie-beams are bolted(hidden fasteners) to the corresponding internal posts. (See attached photo links below). Doubled-up 2x12 ledgers offset to the roof pitch, with 4x6 rafters 2ft O.C. Porch posts are sawn PT utility poles 7x7, Top-plate is 8x8 pine. (The last link is to an album of the entire project, 1886, 34x56ft TF barn dismantled and relocated to be used on a agri-tourism farm in Southern Wisconsin.)
