Thumbs & index fingers for me!! I feel much more in control when flying this way..I dont feel near as in control when using just thumbs.I tried that once & the controls get way too sensitive I felt..I just feel you can get much more finer input when you use your indexs & thumbs
Plus I was always leary of just thumbs for fear of my thumb slipping off the stick somehow while in flight..Could happen you just never know [X(] 2 digits is better for me than just one LOL
Steve