I just bought a DA 100. Have had 2 106s. The 106 will out turn the DA in the rpm dept. My stock non ss, toc, qs 106 turned a menz 28x10 at 6550, and a 3w 28x10 at 6400. My motor had about 12 gallons through it. We took the same 28x10 menz off my 106 and put it on a da 100 that has 40+ gallons through it, and it turned the prop at 6000. Yes the 106 has more umph, but both are overkill on a 35% plane. The 106 shows its colors on a 28-30lb plane. I however, have decided to run DA after seeing a few things this past weekend.