I already did....check out the response....
"Dave,
You already have the HOT plugs, which I use on all of my 4 strokes. Fireball doesn't make a plug
that they call a 4 stroke plug, but my experience says that you can't beat the HOT plug they make.
I've used a lot of different plugs over the years, and it's hard to beat this plug. Pay $7.00 for a
OS type F plug? Not ever."
....and the Guy sells the Fireball plugs....go figure.
FBD.