My pleasure and hope it does clear some of this up for those interested.
Absolutely and perceptive observation. You are right, I wasn’t going to get into a pissing match with @disciplined_trt about 5-28 ng/dl vs 9-25 ng/dl. The context of our discussion was about going much higher above a reasonable physiologic reference range and not about the cutoff for the lower part of the range. I know it is shocking but even I have my limits for trying to not be an ass and for the most part I try to engage in constructive dialogue. 
In my opinion we have enough data to infer there is a risk to even imply this is a reasonable range to shoot for (again, they are throwing this info out to the whole distribution who may be listening and a significant fraction of those potential listeners have never had a fT of 30-50 ng/dl (at age 18 or 28 or whatever).
Hence, I made this thread to deal specifically with the greener grass theory of TT levels:
Take care and thanks for your thoughts and feedback.