I have a 26.5 Cee Bailey windscreen with the NACA vent. I have had it on the bike for about 5 years and 30,000 miles. Last weeek I noticed it is developing what appear to be stress cracks in the lower right hand corner of the NACA vent. There is one going diagonally out from the corner about 3/8" long, and a bunch of little tiny cracks all around that corner. It's a recent occurance, so I'm not quite sure how these cracks will progress. No big deal right now, as you have to look down for 'em to even notice them when you're riding. Not sure how big they'll get, though. Anyone out there with the same experience? Gary T COG#6469 CDA#0137 AMA #620041 '03 Concours "Phaedra" KB Steppers, Throtttlemeister, Russell day-long Cee-Bailey 26.5" {IMG} http://s29.photobucket.com/albums/c280/GThorstenson/th_croppedbiker.jpg {IMG}