Steve of twist machines would be a good
person to ask this question. He has driven a variety of frames, including a 21St Century and would give you an honest opinion. Frank knows his stuff too, but I cannot remember if he has driven a 21st frame. I am sure he will chime in and I would take his word for gold as well.
I happen to have a 21st frame and it is a top notch piece. My office is about 10 minutes from Ed's shop. If for some reason you are down this way, I will be more than happy to let you drive my car.
I think you would be hard pressed to really feel a difference in the DSE, 21st Century, AME from a performance standpoint.
Steve Rupp is running a 21st Century with a Lateral Dynamics 3 link in the rear. He should be testing his car soon so you should have some hard numbers to go by.
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