I am not a math major or a rocket science but I can tell you, you are over thinking this just a bit lol - From your original post there are many variables that are not applied here for example, not the only one, what type of bowler are you (Cranker, Stroker, 2 hand, etc..) what is your ball speed/rev rate. - then with that answered it will be more easy to figure out your general layouts for the specs you provided on those balls.
Make sense? lol
For myself I have (the way you described above)
1 - RG: 2.50 - diff. .048, 500 abralon (royal compound finish)
2 - RG: 2.48 - diff. .049, 500 abralon (powerhouse finish)
my ball 1 snaps at the end and is very strong, drilled Pin up CG kicked out - while similar specs ball 2 is very smooth at the end, drilled Pin up CG inline.
The numbers do mean alot, if your a pro driller, whom will be able to set the ball up for what you want.
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