I must say Larry that this is quite impressive. You've contributed something to this hobby that was desperately needed. I was just going to use the original breather and drop the retaining ring by removing 1-1/4" of the breather for the RPM to work. Looks like you saved me the trouble by making yours sharp looking, as well as affordable. Affordability makes it all the more attractive.
It'll be a while before I'm ready for it, but I must say, this is a blessing for T/A guys. I'm bookmarking this page right now. Thanks a million.