My specs are that my stuff should be like nobody else's. I Have no desire whatsoever to be forced to run the same goverened rpm, engine displacement or gear ratio as everyone else.
Can a goverened/restriced mower be fast? Sure, relatively speaking. But, hit the throttle on that and whoo-hoo, it's like Ethel taking the old Buick off to church on sunday. Now, hit the button on an unrestriced well put together twin, and I dont care who you are, you will not need viagra.
Luckily, our biggest class is the V-twins. We are fortunate in that aspect. And they are good machines as well.
If the rules were to change where I had to start doing the same stuff as everyone else, I think I would take up competative hedge trimming.
And, don't try to tell me that a bone stock goverened twin will give that same hit as a well put together modified one, because thats simply foolish. You may as well try to convince me that your 1980 Toyota Celica with 400,000 miles comes out of the hole better than John Force.