To keep the pole from turning over constantly attach the rope to the bottom corner on side closest to the block as the slack is taken out the block would rise slightly and slide on back edge only and when the block stopped and started backward the slack would return and set the braking pole back down flat on ground. Here's another question I hope to get an answer to from anybody. Here it goes: What if the ramp was made up of primarily slabs of the stones used for the casing stones with maybe mud to help keep them together, temporarily, and when the pyramid was finished the ramp was taken apart from top to bottom fashioning the casing stones as they descended and the waste could of been used for the towns nearby, after all that is where they eventually ended up anyways. Perhaps that is why they were taken because the people knew the durability of the stone and needed to replace older ones on their homes. this could also be why no-one has found any large amount of debris from a ramp. Just fishing here!