I have the nylon mesh filter and the fines are getting through at the seam between the filter and carb elbow. My elbow has a normal gasket on it; it's supposed to be rubber? If so , that would explain why it's not sealing very good. I thought about putting some grease on the flange to catch the fines. Anybody ever try that? I'll also spray the filter with K&N oil. Thanks for the replies gents.
On positive note, after running a few tanks through my saw it has gained some noticeable attitude. Dang I love that 288!