Originally Posted by mlutha
I'm assuming that had I mixed the pre-boil kettle before taking a sample, I would've gotten a higher reading, yeah? Also, is my post-boil sample giving me a true reading, considering the suspending trub?
On the mixing - it's possible. You should definitely stir it up gently to get a homogenous wort before taking a sample. Also, make sure you are correcting for temp correctly based on you hydrometer's calibration temp.
As for the post-boil reading, I have been told that trub will not interfere with the reading because that material is not part of the solution, but simply suspended in it. I have not personally performed any tests to confirm this though. If you are concerned, let the carboy rest for an hour before taking the reading and pitching yeast.