I just purchased  a row flow for my 20/20.  I have no experience with row flow yet, but the health check feature of row flow sounds like a good thing.  With out having to plant it will run through all the functions.  For example it will turn the clutches off and on to see if seed does or does not come out of the tube the 20/20 is thinking should be starting and stopping.  I think that should really help on intial setup along with spring check over.  This will be my first year with any hydraulic drive, so sounds maybe a little more fool proof.