Sorry for the resurrection here.....
I know Don included information about these aluminum gaskets in his reworked Tech Info article, but I've been getting the impression that people aren't really using them when they do lower intake gaskets. These have been proven to work fine on cars with and without pin holes in the block rails, and in my opinion these should be the only thing that people use when they dig into the LIM. We know the other gaskets eventually deteriorate, while these will be durable with their all-metal construction.
Just a friendly reminder
. If I'm beating a dead horse, go ahead and lock this thread up