For what it's worth, I started with "drift by", but found that it made me so anxious that I had no enjoyment in the process. This is supposed to be a hobby for me, and hobbies are supposed to bring pleasure, not anxiety.
All anxiety vanished when I invested in constructing an accurate water bath capable of holding all chemicals at the correct temperature, plus/minus one tenth of a degree, for as long as I desire.
One thing in particular that is problematic for drift by is if you have to make multiple runs. There is a delay between runs getting the temperature back up to snuff, which I found annoying.
I also find color correction due to poorly developed negatives to be a royal pain, regardless of whether you are optically printing or scanning. I'd rather get the negatives right at the beginning, it saves a lot of headache.
Of course, if you are doing c-41 based black and white, I guess none of this is a problem! :-)
Edit: re-reading the thread, I should note that my "drift by" was in a water bath. It was the bath that was "drifting by", so I was typically well within specs for normal temperature. It just always added stress to keep the bath at temp by hand.
Last edited by chuck94022; 11-26-2013 at 12:44 PM. Click to view previous post history.