I thought we should start a new thread in case there are others in the area that may be interested in what you are doing.I have a Bruce and a Danforth. The Bruce is on my roller while the Danforth sits in a locker. I have never used the Danforth. I have had absolutely no problems with the Bruce. It has never dragged except when flipped over and then dragged 10-15 ft. before setting again. I would be glad to donate the use of these if you would like to do some testing.Tim R.