I use my middle finger on the right hand and my thumb on the left. Both thimbles are leather the right hand brown and the left black. I quilt with both hands when I am using a frame. It is much easier to work from both directions than twisting my wrists so badly. It took a little getting used to but being both a touch typyist and a piano player made it feel more natural. As for the underneath fingers I just let the skin get tough.