With a cutter with a single curve and just a single quirk it's easier to set the cut very very slightly shallow then set it to the full height to take a fine finishing cut. Even sanding the finished surface then repeating the edge cut without altering the height setting is sometimes enough - I sometime run the moulding around the edge then finish the flat surface then run the moulding again. For more complex mouldings like ogees obviously this can't be done so there needs to be a bit of tape or a different sized bearing.
Incidentally, if you buy your cutters from e.g. Wealden, if your order falls short of the free P&P it's an ideal time to order different and spare bearings.