I never had my neoprene dissolve to a point it accumulated in the carb screen. I only leave the line inside the tank installed for one flying season, anything outside the tank usually lasts two seasons before I swap it out for new. I rinse it all first, so perhaps the problems seen are from mold release agent or something? In any case, whatever line you choose to go with, don't assume it is the very best and doesn't require routine inspection, develop good maintenance habits early, and you'll keep all of your systems in good shape.

Joe, those are excellent filters! [sm=thumbup.gif]