I have to run 1500lbs and 20lbs of front air pressure to keep from hopping. Went to a three day pull and tried different setups back to back and that is the only way I got it to stop bucking like a bronco. 30lbs of front airpressure didn't work for me. Got to get the front lift off soon.
I have got the southbend DD too. I like it so far with two seasons on it. This year I have been coming out of the hole hard with it. Full RPM's and 30lbs of boost instead of babying it.