I notice that you can buy a raised panel bit with or without the undercutter. You can also use a separate bit to do the undercutting as a second step.
I'm using an P-C 892 (2 1/4HP) router.
Is it better to use a separate undercutter or just use the bit with the undercutter wings included given my relatively small router. I understand it will take multiple passes anyway to get the job done. Anyone with similar experience can make a recommendation?