I spoke with Sean last week, when I ordered another set of five spacers for a new/used engine that I am installing in the Claret.
He gave me the choise of a new adheasive backed gasket with the spacers, or no gaskets with a $10.00 discount.
I chose the new gaskets, as I am on a budget, and the Subaru gaskets are a good bit more money.
My first set, using Subaru gaskets has been great.
I do not expect a problem, but with s/c boost trying to push the gaskets out of place, we will see soon enough.
More later, Tom.