I'm not too sure how Griots polishes/pads work, but I have had success on my '98 Vette using the Griots DA with LC Orange and White pads and Megs 105 / 205.
I'll usually lay on some Megs 7 Glaze and top with M 21. If I feel industrious, I'll top the M 21 with M 26 wax, but I used some Autoglym...