Greg,

How can I tell if I have a cup and cone type SG?

Mine has 8 bolts holding the two halves together.

So far, every one has mentioned a "roll pin".

My understanding of roll pin is a round pin, hollow in the middle and split down the side to allow for compression. This pin is SOLID.

Not trying to sound too dumb or anal but maybe I'm missing something here. I defer to many members on this baod with far more knowledge than I.

Thanks to everyone.
Frank