I've got GAZ adjustables on both front and rear and have all on as soft as they will go. We did try other settings, but got trapped in a kangaroo trip up one road that had regular marks on the road!! (great fun but felt sick after a few minutes).
LOL i feel sick now, just driven 20 miles with them set on 16 at the rear and 20 on the front. Think i am going to put them on there softest setting from now on.