i aLso have oNe of thOse glass-bobbin' hydroMeter bt iTS so far off from the refraCtometEr... i dunn0 which one i shouLd truSt :bigeyes2: :irked: :sigh1:
I use my refracto only to calibrate by how much my hydrometer is off by. My hydro seems to be consistantly off by X amount & I am able to trust it that way.
If you don't have a refractometer, then I recommend that you at least borrow someones & see how much your existing measuring device is off by. Mine is off by .002, which is significant.