Yet to this day, I am surprised just how much difference there is in my control and comfort in this. I have but very little play left..in other words, just enough to say there is a bit of play. 1/2 inch as you have would drive me crazy! My adjustment didn't bother the idle but gave me seriously better control around turns etc. I am not a mechanic or an authority and I did check with service with what I did and this along with the larger hand grips makes life easier...for me anyway! Good Luck