I have a '14 (first batch) SD54 and cut the bar out last week. I was going to hold off posting about it until I was sure it was a good thing and had some good pictures to include. I've mowed twice with it now and I have NOT witnessed any clumps coming out of the chute, but I have not had a chance at thick rain-swollen and kinda tall conditions that I would consider to be the real test. I can say for sure that the clipping distribution actually uses the whole chute now, an edge to edge fan of grass. With the bar on there I'd say 90% of the grass came out as a tight jet right at the very front.