Hopeless Fantasies: I didn't realise I had to do a "2 for the price of 1" approach and bomb a lemming that otherwise would have drowned anyway.
Mean Green Machine: Cutting that one Basher in comparison to Arty's solution (which you didn't call a backroute in the comments!
) really made this level unnecessarily precise timing-wise. I had to re-assign the Digger on the left repeatedly to get him in the narrow time frame of "passing the exit while still closed" and "not reaching the abyss before it's been sealed up by Platformers". While looking at Arty's solution I thought "Why didn't this occur to me? Did I just overlook one Basher, or did I waste it somewhere?" No - it actually wasn't there anymore.
Also, the Old-Formats version featured anti-splat pads instead of updrafts. Thought about re-adding those? For a while, the updrafts confused me even more, because they made me think the whole crowd should travel down with the Digger. With updrafts resetting fall height, this is technically possible (if it weren't for that force field, even if you block after the first drop). With anti-splat pads, it's clear this path isn't an option, because you would be digging away the terrain inside their trigger area, and the lemmings would splat again underneath.
Thought of Jigsaw and made this: I had the Stacker trick and everything figured out, but didn't see a way to make all Climbers survive until they reach the left side. Because I didn't see a way not to make the Glider a Climber as well. So I had to watch just the very beginning of IchoTolot's solution (since Arty's was a backroute) to get the crowd containment right. I never would have thought there would be enough time to let the Glider mine first!
Wild Forever: I traditionally suck at compression method. I was aware that you can use Bashers and Fencers to compress lemmings by having them "walk up on each other". But I hadn't thought of doing the same with Floaters yet. That a Miner has to go through, this was clear to me right away, since I like to use that a bunch as well. And the green grass parts thankfully facilitate proper placement of everything, including the Digger at the end. After that, I also went back to solve "Scarborough Sands", which I had skipped earlier, but I didn't actually have to look for any hints here. Just the context of having done "Wild Forever" first was enough.
But that's why the replay file for Stormy 05 has a later "last-modified" date than the rest.