After speaking with Allan at Barrett, I decided to use small sheets of 1/32" high temp silicone to seal the baffles to the cylinder fins. This was done instead of spreading RTV on the baffles prior to install. The priciple is the same but the sheets make for a very neat installation and arguably will seal the cooling fins better while providing protection for the baffles from the fins. As happens on most normal installs, the fins wear holes in the baffles.