Shorter is the way to go. If you go longer, you have to go to a more radical thumb pitch such as mentioned by sawingemdown. In the 80's this was much more common, long span to get roll, and the boomers used crazy thumb pitches to get out of it yesterday.
You want some palm feel on the ball? Drill your thumb pitch at 1" reverse and 1" left lateral. That'll do it. (DISCLAIMER, MIKE AUSTIN DOES NOT RECOMMEND THIS IDEA)
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