Hmmm, erstwhile, huh? Good job I have my Funk and Wagnells handy!When I was tootling along behind you at 60 per the other weekend there was the merest drool of emulsified oleaginous liquid at your breather extension accompanied by a pleasant evanescent vapour. I remarked on this at the time. I think that 80 per is just not allowing the oil to separate and obey gravity, i.e.not enough height or bore diameter just past your P.C.V./P.E.I. valve.Perhaps you need a Reagan-type "trickle -down"solution rather than a leak-down test.Maybe you need a bigger bore all the way to, and just past, the valve aforementioned. I await stern correction as always.