My curiousity got the best of me and I broke down and got a MM. Split a Beech and Red Oak log that is around 3 years (at minimum) css. Both metered 19%. I was not surpised at the reading, but was at the fact that both are the same. I guess 19% is the minimum I will attain with exterior stacks in my area. That would seem to be a reasonable assumption as to why they are both the same.