Steve, can you explain the measuring thing? That sounds a bit more useful than estimating diameter... Is your rope graduated with a Sharpie or what?The only ddrt I do with crane work is riding they ball. Spar work is totally quick pulling the tail to reset position is super efficient for me and I use my rope to measure mill lengths. If it's a fatty I'll ddrt off the ball to reset or if I'm taking branches with the trunk sections. I do my absolute best to not leave stubs to catch the line on retrieval.