I have a GS 60'' and the only build up i get is around the little baffle by the discharge and its very very little i can pinch it out w/ my fingers, I've cut right after rain several times too, also leaves a beautiful cut too!! the adjustable baffle works good when cutting real tall stuff. i usually keep on the A setting for best suction..
Expert lawn maintenance & landscaping LLC.
2012 f350 6.7L Ultimate lariat
2008 tundra 5.7 d-cab -sold-
1998 isuzu diesel dump 14,500gvw
2011 grandstand 60''
2009 phazer 34"
2013 gs 36'