not in the past,,,,, I do have something new up my sleeve for the new engine.
Here is the catch can I made, it is 18" long piece of 3.5" exhaust pipe run on a slight angle. I also fill it with extra fine stainless steel wool to filter. You can see the drain on the bottom.
on the front of the engine you can see in the valley cover I tapped and put a fitting to run to the top of the catch can
http://i212.photobucket.com/albums/cc122/koolrayz/DSC08821.jpg
http://i212.photobucket.com/albums/cc122/koolrayz/DSC08286.jpg