Impressive job your doing there Tod, as always
That is interesting Norm, we have played with that same idea to get a little more MA out of our 5:1 when pulling over the larger spars, only instead of one pulley maybe adding a second.
Just curious how big was the guy doing the pulling?? A slick trick we have found that gets that little extra force, seems like it does, is to hold the rope with both hands, with the rope behind you, lean back on the rope and and walk backwards using the legs and full body weight on the rope, instead of just planting your feet and using the arms for pulling, you can gain a little extra pulling force this way, be interesting to see if the dyno would show a difference. I could be wrong on this one.
Larry