I mechanically rebalance to my target AA but I do it on a lazy/opportunistic basis. I rebalanced from bonds to stocks on 2/26, 2/28, 3/10, 3/11, 3/12, and 3/13/20.
I also did a Roth conversion on 3/17/20 for about half of my 2020 targeted amount. Normally I wait to do them at the end of the year, but this seemed like a worthwhile opportunity. I then did two more conversions in December 2020.
I generally keep my AA target the same for long periods of time as it's designed to maximize historically safe WR. I've been between 100/0 and 90/10 since 1987 at least. Currently my method depends on how much I'm spending, but hovers around 97/3.
I read with interest the various commentaries here about bond funds, bond prices, interest rates, the Federal Reserve, MYGAs, interest rate risk, etc. Since I'm lazy and not as bright as those commentators here, I just stick my bond allocation in VBTLX and call it a day. Maybe not the smartest move but not likely to cripple my financial plan.
I also remember how "everyone" knew that rates were on the rise and had to continue to rise about two years ago in the spring. Stuff happened and the rates have fallen ever since. Maybe "everyone" knows now that rates will stay low then go up in the near future, but I am not convinced given the recent lack of accuracy in everyone's predictions.