This is a VERY common issue with the 9". In the past I have used a very nice looking catch can from art morrison. Alot of times even with a short piece of hose the
oil will soak the filter and prevent it from doing it's job well. I'm sure you could use any catch can, but I liked the art morrision model and it worked great! It costs $45. i dunno if this link will work but if not, check out the art morrison catalog on
www.artmorrison.com it is on page 7 part # 40403030
http://www.artmorrison.com/2006cat/2...wnload+Catalog