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Finished a study on Catcher's Ability ratings. As mentioned, I set the Arm Ratings in the middle (internal rating of 125 out of 250 translated to a CARM of 63) for both catchers, then I started the CABI at 1 and worked my way up at 10% increases up to 250 internal (which is a 127 CABI). I used the internal ratings which are on a 1 to 250 scale as it allowed me to more precisely increase by 10%. I simmed 100K games at each level. So below is the Percentile and the ERA followed by the decrease over the previous percentile ERA...
0 / 4.25
10 / 4.13 / 0.12
20 / 4.04 / 0.09
30 / 4.02 / 0.02
40 / 3.98 / 0.04
50 / 3.96 / 0.02
60 / 3.95 / 0.01
70 / 3.93 / 0.02
80 / 3.90 / 0.03
90 / 3.89 / 0.01
100 / 3.88 / 0.01
It definitely flattened out from the halfway point and on, but the biggest movement was at the beginning. From 30% to the end, it remained fairly consistent. That means from approx a CABI of 38 and above, the changes were fairly consistent at 0.01 to 0.02 except at 40 (CABI of 51) and 80 (CABI of 101) where there was a slight increase. In the end, the ERA for a catcher with a 51 CABI was only 0.06 higher than a CABI of 88. A Smokey Burgess type CABI would be 0.13 runs higher than a Perfect Bench CABI.
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