I've taken row crossing one step further by having some inside row reeds on my G/C boxes moved around and changed to provide reversals for the G and the A. That leaves only the F and F# without reversals. (On a D/G box this would translate to providing reversals for D and E leaving only the C and C# without reversals.) This arrangement makes finding the "right" chords a lot easier and allows for very smooth legato playing - when that's what I want. For some tunes, however, I deliberately avoid the reversed buttons to force bellows reversals and get a punchier sound. For example, I use the legato approach for Plaisir D'mour and the staccato approach for My Darling Asleep.