"No, I'm saying the MS methods must improve."
"To wit: “It needs to be noted that mass spectrometry assays are highly complex and require both a high degree of manual adjustments and controlling of operational conditions. Therefore, a high level of skill ...",
"So for now I'd rely on calculated free T rather than pay a lot of money for an MS-based test, which could have been botched anyway."
you ARE, by the same token, saying that Estradiol (E2) LC-MS/MS tests are unreliable
(Which is at odds with accepted wisdom !)
" Calculated is better than the immunoassay methods, which have vastly different ranges at different labs, and which seem remarkably unstable in practice."
We are NOT talking about measuring steroids by Immunoassay, we are talking about LC-MS\MS.
" The paper you cite, though interesting, is still short of saying that SHBG measurements are going to be a problem for many guys."
You must have misunderstood the paper, it IS saying that steroid measurements based on calculations that are based on Immunoassays ARE "fallible" (for ALL guys) !