I posted this for a Piston vs DI discussion a while back. If you scroll down the linked ARF.com thread, Ron from Henderson Defense also shares his experiences with lubes. Not much differentiation from the guy that runs more volume across more guns that all of us combined will ever do, but that in itself is a statement.
https://www.24hourcampfire.com/ubbthreads/ubbthreads.php/topics/10590656/re-piston-guns#Post10590656