Most of us mowing guys make additional $ from our other services, such as seeding, aeration, mulching, flowers, etc. I am considering purchasing an aerator, and was wondering if any of you have experiences with a blue bird? By the way, I am considering a WB 28" unit with free-wheeling tines on the left and right. I am a previous owner of a Plugr model, but did not like the fact that it would not climb hills very well. I just want to make sure that the blue bird (non-cam-driven) will perform as well, and not kick my rear-end, like some of the rental units.