I can't understand why you say that TDS is copying the CS727. If you compare both models you'll spot differences in many areas. Both models are beautiful. And for me the TDS 727 was the main reason to buy the CS727 just to get a proper VC.

I have to say i like to fly the TDS variant because it is a bit easier on the framerate, but the graphical effects of the CS727 are great to look at.