Ah, okay, thanks for the reminder! The pack conversion tool will hopefully provide a way out then, as far as the last level is concerned.
The Ancient tileset, among others, will still have to be converted first, however, because otherwise the new pack won't have a style to refer to. As I said, I might do that tileset conversion myself at some time, but it isn't high on my list. The pack needs to be completed in the first place, and then there needs to be a sufficient incentive to create substitute New Formats-only levels (i.e. Jumpers and Shimmiers, or counting exits) for those which are going to get removed.
Regarding your change of philosophy: The Groupie rank is based on what patterns I can extract from other forum members' packs. GigaLems for example also contains lots of troll elements, like hidden traps and brick-covered exits - things GigaLem has now spoken out against in one of Arty's SEB Lems LP videos. But if that's what you guys released, that's what I have to work with!
As far as I know, NepsterLems is your most recent release? Return of the Tribes is older, isn't it?
So as you have probably guessed by now, "The Grand Puzzle" is a 20-of-everything level, thereby a homage to "Final Frustration", and one of the levels in style of "you"
. It may not be representative of your current level design anymore, but it is based on a lot of what I could gather from NepsterLems. (In fact, it even includes a structure from one of your levels, "Diagonal Disarray", you might have noticed.)
If there are any more recent levels of yours I should look at, let me know!