Me too ...
... that is, I have no w'strip there and no whistling or detectable air leak. I do not suspect, however, that it is water tight.
I think mine fits too tight to accommodate a P-seal there .... I'm thinking about some of that 1/16" foam tape the RC modelers use. If I do, it will go on the top only, as the canopy sides would peel it right off the sides of the roll bar.