A 2 frame = 1.125"
A 3 frame = 1.1875"
1.170" is thus .045" larger than a 2 frame but only .0175" smaller than a 3.
It is thus about 2 times closer to the 3 than the 2.
I guess one could just say "It Is What it Is".


Miller/TN
I Didn't Say Everything I Said, Yogi Berra