Here's how it works .... here.
Like the vast majority of us, I have to manufacture the time to play with little cars. Not always an easy task. The formula for manufacturing time is as follows.

Imagine going to the circus (do they still have those?), and watching the juggler keeping all those plates spinning, while riding a unicycle, with the poodles jumping though hoops, and the clowns tossing banana peals, all in proximity. If I can keep all plates spinning, dodge all the banana peels, and not step in dog doo, I have made precious time. Heaven help any who disrupt my slot cave when Im working on "made time".
Seriously though, I enjoy the ebbs and flows of slotting. Recognizing that some of the mindless in-betweens are a good time to engage my last three brain cells; to think, plan, and ponder my builds.

I often do my best slotting, hanging on a ladder painting, or letting the lawn mower drag me around the yards.
Interestingly, I tend to post in a follow-up fashion, during the lulls and voids. When I'm not posting, rest assured that mischief is afoot