Just a word about aeration. I just purchased one of those stirrers that connects to a drill. This weekend wass my first opportunity to use it. I brewed up a pretty heavy batch dwith 10lbs of extract in five gallons with two lbs of specialty grains. The starting gravity was pretty high.
Needless to say I aerated with the drill attachment. The pitch temp was 62F and the yeast was rehydrated SA-04.
This morning at less than 12 hours from the pitch, the temp is at 66F and there is a good inch and a half of nice looking Krauzen and a lot of air-lock activity.
I can't say that I have ever had one take off like that at such a low temp so for now, I'll attribute a good part of the success thus far to the superior aeration with the drill attachment aerator, now highly recommended.