HuTurn,
Once you have become familiar with and use to, you would not have them any other way. That can get you out of a lot of trouble.
After you've operated it for four or five mowings, come back and tell us if you still want to slow them down. One more thing you may want to do is to ask someone that has owned one for a while if yours is any more sensitive than theirs. My guess is they are the same.
Good luck,
Max