What are the rest of you doing with your engine vent line?

I used to just vent it out of the cowl, but there were a couple of occasions in the rev-1 days where I completely covered the belly, with oil.  I think those were mostly due to having the vent line in a suction area of airflow though.  I ended up installing a fairly large (about 1/2" ID) clear tube with a quick drain valve on the end.  That keeps the airflow from causing suction, and lets me monitor how much oil accumulates in the tube.  The tube is only about 15 inches long, so it doesn't go all the way back to the engine.  Instead, I ran a smaller hose to the engine.  That hose slips inside the larger one, with enough space between the hoses to allow air to vent.  Since I've done this, I've never drained the line, because there isn't anything in it. 

Rusty