At this point, I'm going to disable the flapper valve inside my existing
breather and utilize the later model ball valve.
Greg, I strongly suspect that no one else on this list would do what I did, but I feel obligated to tell on myself just in case...
I did this mod two years ago on my Ambo (I think it's described in Guzziology). When I disabled the flapper it became "free range" in the breather box. I convinced myself this was ok, later I started spilling a LOT of oil. You can still see my trail in the street outside my house. Fortunately I noticed before I destroyed anything (besides the environment). My suggestion is to make sure you fish the flapper out of the breather box so it can't make its way to somewhere you don't want it to be. Rob