how old is the SE filter? I have and 02 that had, my guess is an 02 version of the SE filter with the breather holes at the bottom of the back plate. on long hard rides it would blow oil all over the right side of my bike. I upgraded the the back plate to the newer style part number 29510-05 page 542 of the p&a catalog, that vents at the top and has breather tubes that vent into the throat of the carb or throttle body. Replaced this last fall and rode all summer with no problems.
ok. guess i got lucky, or i dont ride as hard as you guys do. anyway, here is another option http://www.dohertymachine.com/index.php?cPath=1 but its kind of spendy IMO. not sure how much the S&S breather is. AN even cheaper option is (i read this and havent tried it) to stick a Maxi pad to the inside bottom of the filter cover. and change as needed.