340 Rear Main Seal Replacement

Have you or anyone else used Milodon 40600 crushproof oil pan gaskets?
Yes, and it is reusable so long as you put it on dry....which I found out a few years ago when my new engine had a rear main leak after 1 mile of use....1 frickn mile.....I had a race the next weekend so I quickly pulled the engine back out and replaced the rear main seal (just barely got the engine back in the car the night before the race, lol). Was thankful for 1 less gasket to re-purchase on a new build. Still works great, no leaks.