On Monday, September 16, 2019 at 7:26:30 PM UTC-4, jbeattie wrote:

Another thing I don't like about double-tap is it requires too
much intelligence. If you're on your last cog and think you've
got one cog left and hit the shifter, it drops you down a cog --
kind of the opposite of what you wanted.

That's an excellent point. I've been bagged by that on a couple of occasions.