Wow! Had to move the brewery to the deck today. Too nice for the shop. Brewing up a Blonde and an IPA maybe a brown too if time permits. Time to get Christmas gift beer rolling. Kinda down to the wire for bottle conditioning by the big day.
There's more to yeast than converting sugar to alcohol. One is acetaldehyde. It gives beer a green apple flavor. If it's real strong it can smell and taste like a latex exam glove. Gravity can be bottomed out but it may still need time for the yeast to finish converting these monsters to good stuff. Most folks don't use a secondary anymore. Your test should be for stable terminal gravity but also odor and taste tested that acetaldehyde is gone. For me that's usually three to four weeks.