I'd be interested in having a mode where instead of activating each tick, it only activates once per 15 seconds or so. It would be more than good enough for both of my use cases (in AngelBob, prioritizing the ores which are fewest in store). Although I'm not sure how much it would affect UPS in the first place - maybe I'll be fine if it runs each tick? My UPS is 60 and my factory isn't that big. I wish the description was more specific about this.
Edit: if this gets added, it would be great to have all selector combinators run together. Otherwise I wouldn't be able to reliably calculate the difference between the #1 and #2 highest values in a list, if they change dynamically, and are strongly correlated, and I need to do this for AngelBob's ore sorting, to run the #2 most desirable method only when it's almost as good as #1.