What's the analysis of the fert you're using, Chris? (the 3 numbers on the label) I'd suggest, for the cold weather just fertilize "weekly weakly" i.e. only put fertilizer in the watering water, not in the sprayer. Mist with plain water or add the Epsom Salts to the spray water. I put that in my sprayer so they get it more often. 1/2 tsp. per quart.
OR do it the other way around, only put fert in the mist sprayer, then water once a week (or less) with plain water with Epsom Salts added.
When you water, (after you're sure things have dried out well), you can certainly water until it drips out the bottom. Think of it as the orchids getting a really drenching rain shower, as they would in nature.
Any improvement in the color of your leaves yet? Another picture would tell the tale, if you can take it in similar light situation to the previous one for a good comparison. Remember "Killing with Kindness" is the most common cause of orchid failure - overwatering and over fertilizing being the two "kind" things people do too much of.
