Hi
Hand problems are caused by too much weight on the hands. I found 2 items which help in addition to those mentioned:
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1. Get the handle bars level with the seat. This may require a stem with a long quill length.
2. Every 5 minutes, I take 1 hand off the bars, extend it forward and rotate it around the shoulder like a propeller. I repeat it going in the opposite direction.
Then, I extend it outward to the side and and bend at the elbow a few times.
Repeat for the other hand.
The propeller movement can be felt all the ways done your back.
This I found effective.
John Hawrylak
Woodstown NJ