MM - I'd be interested in hearing more on this question from sundownz.  I've tried a lot of profit switching software (all the major ones) and one thing I do notice on MM is that it switches far less frequently than others.  That might just be attributable to the one pool I'm on right now not varying as much (Blazepool), but I've been going >12 hours for a few days in a row without switching on algorithms (i.e. no more than two switches per day) and I'm generally not sure why. Every once in a while I do see that by multiplying my hash rate * estimates on the pool that I might get more if I switched right that second, but probably not a lot.

Clearly you have some cool stuff going on in the background that is either limiting switches or taking way more data into account than just the pool (as your comment suggests).  I'm not complaining at all, just curious as to how it's working.