What needle depth is generally used for Morpheus8 and festoons?

I have mild festoons (not malar bags, I know the difference!) and am getting M8 from a plastic surgeon's office. I've read that M8 can help festoons, but this office hasn't experienced that, although they are very experienced with M8 and have great results, otherwise. Anyone who has had experience with this issue, what needle depth is generally used for M8 and festoons?