Thanks -- yeah, that's about what I had figured -- plus a vertical stretching of the boom section between the block and tack cringle (unless the block is stropped on?). It seems like a rather serious (and multiplied) resultant vector right at a hinge-y place where there's already some tricky...
Curious about the forces generated by that block nearest the gooseneck on those mainsheet-to-the-mast setups. Are they mostly just counteracting the spar compression/luff tension forces, or are we introducing a whole new bag of vectors?