Well I ordered the F70. It needs a few days to get here. The first place Im headed is to that cellar hole I mentioned before. I may have a bunch of ? for you all. Is there a place to see the operators manual on line so I can get a head start before the machine arrives? Ordered the 11"DD with it. I love my F4 but hear the F70 can go deep if set up right. Thanks, Osgood