I HAVE CONVERTED!
I have gone from a SuperTigre hater to a SuperTigre lover. This morning I just about had lift off of my black n' decker workmate and the 2x6 that the 3250 was screwed to. The gunk in the ring groove was causing the ring to stick too deep in the groove, allowing for blow-by and no compression. I removed the gunk, flipped the engine over at the settings above (Thanks Bill, I found the thread!), and the thing roared to life!
It's going in a Midwest Extra.
Thanks everyone.
Peter Gordon