Nice, I just managed the 100% Crazy 1 solution! I'll send it to you, Eric, and ccexplore to check, via mail (I don't know whether ccexplore would like me to send it to the portal right now).
For the portal, with a lot of really amazing solutions, very good idea. It's just a little bit chaotic in there (although by searching, you easily find what you want), anyway, maybe a kind of 'nomenclature' for the solutions file names would be good for the sake of clearness.
The elevator effect is neat, that's true. IIRC what ccexplore told me, he found it with help of the disassembly. Without knowing it before, I found it out by accident later and used it in a level of mine.
Since ccexplore created a level showing the trick very well for the lemmings remake (
http://it.travisbsd.org/lemmings/lemmingswelt/forums/?topic=1135291547 , search for bigleap.lvl), it shouldn't be a secret anymore.