Timbrens vs Hellwig helper spring

I have had hellwig helpers on an f150, airlift airbags on a coil sprung chevy avalanche, and now have timbrens on a gmc yukon xl 2500. I like the timbrens the best. My yukon has the quadrasteer system with a dana 60 rear axle. Timbren did not make a helper specifically for this axle, so the helpers are in contact with the axle all of the time. It makes for a rough ride when unloaded, but it tows great. This is not our daily driver so we can live with it.