340 Rear Main Seal Install with Superformance Seal?

On a small block the "seal retainer" is the rear main cap. I'm 100% with Blind and the others. Nothing should be spread directly on the mating surfaces. Certainly not RTV. There are anaerobic sealants and other products to properly seal mating surfaces that are designed to use them. A main cap on any Mopar V8 is not one of them. Sealant used here it shouldn't be certainly can affect other things. I've never offset the ends and use the absolute minimum of sealant. That being said - if that's what you're used to doing, and it either works for you, or works well enough, that's your prerogative.