I had some yards to aerate today and I was using a Bluebird 530A type aerator,This thing is a BEAR to use!!! I am a pretty strong guy and this thing took all I had to "man-handle" it around!If you get it on just a slight grade,it always wants to tip over because of the set up of the front middle wheel.and the drive mechanism is extremely jerky,almost impossible to keep it at a constant speed.My inner thumbs have some good callouses forming! I dont want to think about what Im going to feel like in the morning! I am going to have to use something else if I continue to offer this service.Is there any aerators that mount to a hydro walkbehind or something similar to that?Also the bluebirds width is only around 20" so it also takes forever along with beating you to death!What do you guys suggest using? I think i could probably fabricate something to mount to my turf tracer but turning around would be the problem.I would be interested in seeing some pics if anyone has ever made one.Thanks.