Had one on my 2000 35' Rexhall gasser. Worked great. Without it if you released the steering wheel the MH would be out of it's lane within 10 seconds. With it I could get 30 seconds to a minute hands-off without drifting out of the lane.
It was a bear to get proper adjustment though. Would have to stop at every rest stop to make minute adjustments. Took 5-6 stops before I got it dialed in. The adjustment is to loosen the two "U" bolds on the front axle and move them a tiny bit. A threaded bolt type adjustment would have made the job a lot easier. This is on an F53 chassis. Don't know how it would work on a DP.
I will probably install one on the 2014 30'er I just bought, also on an F53 chassis. The Blue OX adjustable from the cockpit sounds nice, depending on the price delta. A friend had something like that on a couple of MH's. One leaked and the other quit working. Not sure if they were Blue Ox though.
