A833OD with worn output spline

I measured the spline on the 727 i mentioned in an earlier post, and found the following: Major= 1.277
Minor= 1.191
The major is obviously .002 larger than than measurement on my 833, but the minor is.018 larger than mine, Yikes! This only serves to confirm the tolerance differences between shafts. Incidently, my yoke fits beautifully snug on the 727, but brutally sloppy on my 833. Again,the difference in Major and Minor has me a little confused, as with the tooth being flat on top, and the root being a V, I am thinking this may not be the correct way to measure this type of spline. Anyone know a machinist or engineer that can give advice on this? As the contact is on the flats of the "V", I can't see how the major and minor measurements as compared with the slip can have any useful meaning. sireland67 mentioned the distance between teeth, and I also believe that to bey the key, but I am not sure how to accurately measure that. What is the part# on the yoke from Brewer's? I may order one to try.