I've never heard of that I might try it. Couple days ago I cut a little of the deck off to make the discharge hole as big as the tube. And I used it today with some thick wet grass it worked great I'm going to test it tomorrow on a large field and see what it does if it works well ill make the commitment to get the hi lift blades.
I realize this is not the top end machine but it was free and I plan on upgrading in a few years.