I have a 30-35 degree slope in my back yard and the damn Bluebird I rented kept dying continually becuase of some oil level sensor....

 

I have done some side hill stuff, not sure quite as steep as that though. It wasn't easy to control but I was able to make a few passes and keep it out of the ditch. You will need to keep the heavy side on the high side when making your passes. On my Ryan if I keep the heavy side low the oil sensor will kick the engine off. I think that might be the real test if it is too steep or not, if you can keep the engine running. On the Ryan the engine is mounted to the right putting more weight on that side, that is what I mean by heavy side.

 

We do not offer aeration on hills as steep as that. No aerator is safe to use in extreme conditions like that.

 

they stink...I rolled one of them Bluebirds before!! last time I used one!

 

Unsafe. Don't do it. Good spot for liquid aerator, maybe compost tea, Barry or Phasthound can help you out with a suitable product. I am sure the customer does not want you to do something that might get you hurt on his property. I am sure he will be happy with a liquid aerator product, once you explain the many benefits. For example:
http://www.natureslawn.com/aerify.php

http://liquidaerator.com/default.aspx

http://www.outsidepride.com/lawn-aerators/liquid-lawn-aerator.html

Good luck!

 

Thanks for the advice. I have never tried the liquid aeration, but I assume it works. It is in north Georgia with heavy clay. Where I rent my equipment, they told me that the aerator will go up the bank but to not use it on horizontal passes. I might give that a try. Thanks.