You would be hard pressed to reduce wind rows with a RD deck. Unless you cut off less than 3 inches of dry grass. Otherwise it will pile it up. Look at it.. It has no choice. Gator blades. . Don't cut much off and slow yur speed.
I have a set of g6's now. They do a good job but was thinking of maybe trying a set of high lifts with it. I think that the clippings are just the result of the rear discharge. Was thinping that doubles might leave finer clippings?