Byron, you may have an issue with your measurement device. You aren't by chance using calipers to make your center pin measurements, are you? If so try investing in a decent quality micrometer, something accurate to .0001" and then learn how to properly use it and read it.
No, I have two micrometers, one digital and one regular. They both gave the same readings. Another technician verified also. I sent the first ones back to one place and they confirmed that they were wrong. I haven't sent the others back.
I know to subtract 10 from the reading and divide by two.
In one of the bags, the pins that were supposed to be 1 1/2 sizes up were actually smaller. This happened to me three years ago and again this week! Go figure.
I'm sure they'll help me sort it out.