Remo drumheads on dw drums

I have a dw drumset and wondering if anyone is experiencing the same problem with Remo drumheads not seating dw drums very well. I went as far as testing other dw drums and players in the city here with the same issue. Why is it that Remo drumheads don't seat dw, especially 12" and 14" drums very well ? They like teeter totter a bit. I went as far as recutting the bearing edges double 45 that was done for me by Mark Ross at MRP drums, which by the way did an immaculate job. If you put an Evans or Aquarian head they fit hand in glove, but not Remo. Many have told me that it's not dw,... it's Remo. They were aware of it as well. I notice that the Remo collar is on the bearing edge and when you put the drum hoop on it stretches on the bearing edge instead of being over the bearing edge. I contacted Remo and they sent me new heads and still the same problem. One thing I must admit with the new edges is there's less a teeter totter, but still there. Why wont Remo update their heads? I am not a huge fan of Evans and their flexible, non-rigid hoops. Those heads don't last too long and I am not a huge basher. Aquarians are awesome, but they are a bit different. I just love DuPont heads, but Remo collar is not up to date.