softball question for Richard 
InputON & InputOFF … 2 separate input variables
versus
Input & !Input … 1 input variable
memory usage and speed of evaluation when using. Who wins?
It’s probably a wash …
Since I added OFF times … I find no need to ever have the compliment of an Input as another Input.
I should have been more clear… The inputs I’m referencing to are buttons being on/off (basically to track state of things), not times.
I thouht maybe having more Input variables defined may increase memory usage?
I think Richard means that ! logic is based on PLEG having the ‘off’ time stamp.
You would need to get deep in LUA and kernel to figure out the small percentage if any. My uneducated guess is a fraction of 1%.