Common sense approach sir, never said I was an expert but, I have a lot of experince with the TR's. I'll have to spell it out to ya I guess.......TR's return system consists of the following parts.....a drag chain, 2 sprockets, 2 shafts, 4 bearings, 2 augers, 4 bearings,,,all components driven by one chain Now I'm going on sight alone with the CR's return system so if I'm incorrect please feel free to correct with truthful information......3 augers, 4 bearings or more, some sort of gear box where the augers turn 90 degrees to come across the sieves, small rotor, 2 bearings I assume on it, some sort of rasp bars, some sort of grate, if I recall correctly it was all hyd. driven, if not add the needed drive now you take a good look at this and tell me which has more moving parts, which would cost the most to rebuild, and which has more wear pointsIJ Also which is easier on the grain!!!! If you have a worn out TR in 3 years you have a problem running to much dirt through the machine, fail to lubricate it properly, or you actually have no experince with a TR, going only on rumor's. Or, you may be one of the 50,000+ acre farmer'sIJ I replace the flighting on my augers every 2 years except on the auger that carries the tailing across the top of the rotors and the grain tank augers, as this keeps the machine up to it's "new" capacity plus maintaining grain quality. For the clean grain, tailings and bubble-up auger it costs about $150.00 to re-flight, complete costs. JD