Playing matched grip with mainly fingers is fairly straightforward, but I find that when playing traditional grip, I cannot achieve similar speeds using my fingers in traditional grip.
I have tried watching Dave Weckl's Back to Basics video. He suggests trying the fingers first in traditional grip with the palm facing down towards the drum head and dribbling. This feels great and easy, but as soon as I turn my hand over, I lose understanding of how my fingers are supposed to behave. Any advice or direction would be much appreciated!