Bernie,
You are welcome. Sometimes the grey matter inside this bald head of mine comes up with a good idea.[X(]
As the discussion of whether or not to put the tab on with offset on a model has come up on the other WACO YMF thread, the general feeling is that, mount it straight as the servo trim will take care of any trim needed.
On the full size, the tab is set for the normal cruise speed to lighten or eliminate the load the pilot has to apply to the rudder pedals with his feet. Having to apply pressure to one pedal for a couple of hours of cross country flying can be tiring and lead to cramps in the leg.