I had never heard of either until it was mentioned here. No mechanic or pilot I’ve ever talked to has mentioned either product, and I don’t recall seeing it mentioned in any of the usual aviation publications, so I’m not sure how “well known” it is.
My point being, there’s no way any replacement for 100LL can be tested with every possible combination of engine/airframe modifications or additives, in the same way that airframe/engine STC modifications can’t possibly be tested against every possible combination available.