na, i get bloodwork done day 1 of PCT, see how off my levels are (test is alwasy in the gutter, estro out of level, etc. Then i get them pulled again 2 weeks after i finish PCT...Its one way that ive narrowed down all the random RC serms ive purchased over the years. The past two cycles, buying from the same company, has paid off. They are superior
To each his own, buy RC liquids, or buy "pharma" tabs. If it works for you and you are able to prove it to YOURSELF, then awesome!
Also keep in mind that there are sketchy "pharma" companies out there, just like RC's.
But if you get bloodwork done, the proof is in the results.