My span is 5 1/16 mf and 5 1/8 rf finger does 5/16 rev no lateral in the thumb seems to be about right for the thumb.

Want to buy an new ball just want the right feel JustRico and Gizmo823 has help me in the past I am 66 years old have very stiff middle finger. I did have an ball with the long span and 7/8 rev in the finger I think I had 0 or 1/8 rev in the thumb gave ball to junior bowler and just can not remember which but several friends liked the way I rolled it.

I know a guy who's span is 5 mf 5 1/8 rf and thumb pitch 5/8 rev 3/8 lateral to the palm and it's been that way 30 years never changed.

For a right hander

The thumb pitch charts were developed when it was standard to go with very long stretched spans, and it was also assumed that finger pitches would be forward ( tucked )  If you think about it, 1/4 reverse on the thumb and 1/4 tuck on the fingers puts no more or less strain on the hand than 1/4 forward on the thumb, and 1/4 away on the fingers.  What it does is shift the weight as it lays in the palm to give more of a feel of laying on the pads and the finger.  If you are trying to get more open handed on the release ala PDW, the latter is the way to go. 

Angles are not preset for anyone...what may work for one does NOT automatically mean they work for everyone...this is the issue with a majority of theories as well as fitters...
No two hands are alike due to history nor do two individuals swing the ball the same...too many do NOT understand this

     I could not agree with Rico more. I have over 2500 fitting slips in my customer database and probably not 2 identical. I measure to each individual and only use the IBPSIA chart as a starting reference and adjust accordingly for each individual. I consider myself to have a unique hand. My span is 4 11/16 x 4 7/8. I have 1/16 reverse and 7/16 left on MF, 1/4 reverse and 5/16 right on RF, and 1/4 Reverse x 1/4 Right lateral on thumb. This may fall into the "corkscrew" fitting, but it is how my hand lays in the ball and gives me no hand pain or release issued.
     If you are a pro shop operater, watch how your customers hands lay in the ball when fitting. Don't just say how does this hole feel and off to the drill press you go. As for the bowler, look at how your hand lays into your ball. Don't be afraid of suggesting a change to your pro shop operator. Just like going to the doctor, who knows yourself better than you. Pro shop operator can see you throw the ball and identify issues, but you the bowler feels the ball coming off your hand, your the bowler can feel discomfort.

Too many-pro shop operators or bowlers, do not actually understand how any of the angles, to each individual hole, effect simply gripping the bowling ball, how it effects the swing or the release...and most tend to equate their individual situation as gospel and it tends to be the farthest thing from factual