Stuk - I had the diverter pointed out and up, prop wash and vibration puts the oil all over the inboard side (upper) of the wing, but also from mid canopy back to the entire tail, vertical stab, horizontal. By the end of a second tank of fuel, the oil drips off the low side of the fuse and around the tailwheel during flight. Engine and prop vibration were making the outlet whip around in about a 1" circle. I would like to get a thin wall aluminum tube, bend it down at 90 and slightly in to terminate about 1/2 to 3/4 of an inch below the main gear at the fuse. As far as the battery goes, how do you get it below the tank? I slid a 14oz tank in there no problem, (it came with a 10, and so did my trainer), but I never saw enough room to get a battery in there. I am using a 1200 mah nimh.