I've tested
My '78 H30 has the same problem that Jeff describes. Using a snatch block on the toe rail, I can't point as high as I'd like to. Part of the problem is that the foot of my jib is above the lifelines, so the sheeting angle to a toerail-mounted block doesn't allow me to bring the clew all the way in to the rail while maintaining proper sail shape. When I grab the clew of the jib and haul it inboard by hand, I'm able to point several degrees higher.I haven't installed the inboard jib tracks yet, but I forsee that project in my near future.