Thanks for all your replies!
Buzz, that was article was a short and to the point, thanks. Although that article had the same info which lead to my post - that the variance between what the label says, and what it is can be a full size different, (i.e a 5x can be a 4x to a 6x, but most likely towards the 4x for the durability). They will also never state the stiffness. Apparently Frog hair actually tends to go the other direction, smaller and limper. The .02 is always worth it!
The obvious answer would be to buy a micrometer (is that what it is called?), and do what Mike pointed out and keep it to the same brand. Mike, have you tested different brands, or are you brand loyal? I’ve just been brand loyal, usually buying Umqua, for no particular reason. The good thing is that my local fly shop carries many brands, but just not in 100 meter spools, so everything is cheaper and convenient from the internet. Gotta love that.
One of the big misconceptions about teaching is the “extra time” we have, especially for the newer teachers. It is a career change for me. What our contract hours state and actual hours are never aligned. Plus for the new crop of teachers, we have to take a lot more classes and jump through more hoops than the veterans who are grandfathered in on many things. They have all kinds of time. So currently I am taking and paying out of pocket for 2 classes at Santa Clara, just to keep my job. (Although we did get a 1.4% pay raise last year! That covered the SCU parking permit

) The time is spent doing our job is just concentrated. A couple of weeks off during summer are definitely fishing conducive! But yes, I do love my job. If you want to switch carriers, it is always an option… or there’s Cisco.
Cheers,
LB