I see that you do make adjustments during the day with the Milanese Loop band which is what I reported. However, I had to adjust the original band on average at least once an hour.
With the original band, I would have to enter my passcode about 4 times a day. With the new band, I made it until about 9 am this morning when I finally had to enter the passcode (shower at 5am, office at 6 am).
I am not athletic as my major event of each day is walking my dog. The majority of my day is spent behind a computer doing research and some writing.
I know that my wrist expanding and contracting could be a factor but I had no passcode issues when using the link bracelet. I am not interested in the leather strap or the leather with a magnet by Apple.