Hooked the 12 foot Amco disc to my 5220r this afternoon to cut up my garden as a small field for soybeans. Pulled it in 7th gear most of the time, switching to 8th gear to smooth it on the last pass. Tractor pulled it really well.
Those pics should answer most of the questions about using a disc . Go deep the first pass and let it dry a bit . Let her dry a few hours , with a beverage and go fast and shallow to feather it out . Nice pics , nice work !