From your earlier post, it sounds like you are cutting off 3 inches of grass at a time. Is that correct? For best results, we recommend cutting 1/3 of the length of the grass blade at a time or around 1”. We use a cut-off baffle as part of our bagging kit that may help your particular situation (cutting a little bit longer grass in lush conditions). It is part number 112-3983-03 and you can order it through your dealer. Again, it sounds like your deck may be being overloaded and we would recommend cutting less at a time or driving slower, but this part may be something to try.
-The Toro Company