Doesn't seem to be any consistency ref year then.
I have been told the same as Johnny C mentions, the Non Varioram is more tunable to obtain more power, especially when it comes to cams etc.
The main reason I started the thread, I was talking to a chap on the Autofarm stand at Silverstone and he believed that next year one of the Porsche racing series are going to allow 993's in but only Non Varioram cars, and he felt that this will add to the value of Non Varioram cars a little. At the moment some buyers seem adament that they only want a Varioram model. It is interesting that Johnny C went specifically for the Non Varioram car.
Andy B.