JBL,

Funny you should mention that. Just this past weekend I was talking to a veteran pond builder who is going to help me with my next pond projects about that very topic.

No, I don't have the ripper...and wasn't smart enough when I bought my dozer to understand the need for one. I think you are right about the scraper. I was lamenting to this veteran pond guy about how difficult it had been for me to cut clay in the dead of a dry summer with the 450. He fully understood and said he didn't understand why more dozers don't come with the ripper. Live and learn.