I am finally finishing my renesis rebuild, with so much help from this list-- thanks My question is with regard to the ventilation of the case. it seems that the rotary has a nipple off of the filler tube for this purpose... (I don't think that I have that tube currently and will probably make one) Using this port, is it a good idea to just plumb it out of the back of the airplane as with a crank case vent? Is the amount of oil/vapor created significant enough to collect it and recycle it? What ch'all doing? Thanks again, Rich