Numbness in the little finger & 1/2 of the ring finger is Ulnar nerve damage. I had it bad on my first tour in both hands, along with a weakness in my grip. I could hardly use silverware let alone play a guitar! I rode with it for a month on the trip, and then saw a doctor. She said to give it a while. After 6 weeks it went away. Man was I glad. I blamed it on my gloves & not changing positions often enough, a lack of training, and the bar tape I used. The bar tape was Brooks leather, which had large lumps where it overlapped. I looked for gloves that specifically mentioned protecting the Ulnar nerve, taped my bar with sewn on elk hide, and move my hands a lot. I rode the same route last year with no problems. For this years tour I added a pair of aero-bars so I can give my hands a brake now & then.

Here is one glove that I found:
http://www.pearlizumi.com/product.ph...uct_id=1236220

Tom