ALL,

I have been following this thread with interest for some time. I'm an old pattern guy and would love to see SPA or even BPA catch on across the country. I would like to share a thought on the 4 stroke vs 2 stroke issue. In my mind there is no question that a .91 4 stroke is a clear advantage to a muffled .60, so why not allow the use of muffled .90's. OS and Magnum both have them with .60 size cases. I am assuming ( we all know what that means) that a muffled .60 and muffled .90 will produse roughly the same db reading.

Mike