Edit Simon: Split from Simon blogs, committees and spawn intervalsVSI had nonzero benefit and still sparks debate.
As you'll recall, I gave thought to this for NeoLemmix at one point. I wasn't very keen on an outright cull; I was a lot more keen on the idea of making it much less fine-grained; having a smaller number of possible values (with a larger difference in spawn interval between them).
With Loap, I have gone for such an approach right from the start. Instead of 1 to 99, Loap's spawn rate (I'm using this term internally, though I suspect people will likely continue using "release rate" in most discussions, to differentiate it) ranges from 0 to 9. A Loap SR
n is equivalent to an L3D release rate of
n9 (eg. 9 is equivalent to 99, 8 to 89, etc). It's now confirmed that all official levels are solvable (including Winterland); some custom levels have issues, one of which is due to this (not due to the coarseness, but rather due to that Loap's minimum is equivalent to L3D's 9, while in L3D the level in question has an L3D RR of 1, and the difference is solution-breaking).