Originally Posted by
grizz1
With standard shimming I currently alternate between OD 97T med and 77T hot, depending on what I have left in my tool box at the time

I have just got some of the new GO T4 plugs in which are medium hot, as opposed to the T3 which is hot. I think the T4's will hit the spot nicely, plus the price and quality of the new GO plugs is great.
Well you are lucky if the plugs are reasonably priced as here they (GO plugs) are actually more than OS plugs which to me makes no sense.