Btw, the "idle for two minutes before shutting down" thing is nothing new, those same instructions have been around for a very long time and I've mentioned them often in old threads talking about oil consumption and how to check oil levels, or how to ensure when changing oil that you've moved as much as possible back to the tank before draining. They would apply to pretty much any dry sump engine. HOWEVER, if you haven't been doing this in the past, and you're comparing the dipstick reading today with what it read yesterday after using the same shutdown method, I'd still think something is going on. Perhaps consumption, but if halfway down the stick means what I think it means, that's a lot of oil to consume in just 150 miles after not consuming any the the previous 375 miles.
If this is again the beginning of a sumping problem, I'm baffled by Harley's inability to fix this seemingly basic engine function issue. They have either given this project to some seriously unqualified personnel, or they know the root cause but don't want to spend what it would take to fix it properly so they just keep trying band-aids. Who knows.
JMHO - Jerry