Hey, there are no dumb questions!

I too was wondering what would best for me too. After doing some research and talking to other people, all I could determine, was that the new Surpass 91's weren't as affected by tank location in relationship to the carburetor. Also, these newer style don't have a choke, which really turned me off, even though it probably works just as well as the older orginal Surpass.

So, what I did, was some research and ended up buying a ASP/Magnum XL91 RFS four stroke. It's basically a copy of the orginal O.S. Surpass 91. Tower sent me a coupon for $20.00 dollars off, with a purchase of $150.00, plus you get free shipping. When I bought mine last month, it was listing at $149.99 (Cheap)

I have used and still have a O.S. Surpass in my Midget Mustang, it runs great. This was my main motivation to go with the ASP/Magnum, as it's a proven design.

So, may be you might want think about this option.

Also, was I correct in my understanding on the newer Surpass II 91's??????