I have mentioned it elsewhere, learn to ride by just holding the bars with one to three fingers as much as possible and when its safe and no need to cover the brakes. My usual way is to just hook my index and middle fingers over the bars and thumb and other two fingers go behind the bars. Sometimes, I have three fingers over the bars and thumb and little finger behind the bars. Its a solid grip but most importantly keeps the palm of your hand off the bar so there is no pressure on it and hence no nerve damage. PBP this year, I rode with unpadded mits, no double tapeing (I bought some to do it but was not interested enough to do it in the end) and had no issues of any description. Unlike my toes that I have no feeling in apart for the big ones, I walk about all day thinking I have big holes in the toes of my socks and always frightened I get my "tootsies" caught in the sheets in bed and rip my toes off if I jump out quick not knowing they are caught up.
It takes some getting used to but eventually it becomes habitual. Think I have been riding like this now since the 70's.