How do you know that a //gs prototype wasn't made with the 10mhz speed, 80mg Hd, etc.? I've heard that 1. No Mark Twain prototype is identical, and 2. Many prototypes were destroyed. Ok, now put those 2 facts together. Good. Now, isn't it possible that a 90's //gs was made, and destroyed? That's my 2 cents worth. Terry Mathews