This is simply amazing!
I just vaguely remembered it, from solving it years (probably a decade or more) ago.
Diablillo's comment does it justice!
I had a nice path, that was 16 short (among other ''blunders''). :))
Later on, I encountered a 4 off, as well (like Devildude) and a 2 off, perhaps what David once had. But finally I managed to unlock all the secrets of this beauty and want to give it 10 stars. :)
For me, this is the best PP1 level EVER made. It's an absolute masterpiece that has everything: incredibly clever shortcuts, dozens of tricks (and all of them different), a challenging difficulty that still never becomes frustrating, excellent use of space, and a correct implementation of backtracking (it's not simply coming back after unlocking the side of a T lock, which is the weak point of other excellent levels like "Forgive Me"; here you'll be expected to be extra careful about which blocks to push or not to push to avoid getting stuck). All in all, I think this is the peak of PP1 levelmaking, and it saddens me a bit the fact that most likely there will never be another release with this level of quality and creativity.
Probably my favorite level so far. How did Amelioratio stuff so many shortcuts in? Actually for me the four-cut wasn't the biggest problem, there was a two-cut where a block was just sitting there screaming HEY IM A SHORTCUT an I didn't take it. Anyways, I love this level.
After Amel. created this difficult level, Reach managed to find its shortest route in three tries, and stumped Amel. for a long time as he tried to find it. Most stronger players get stuck in this level for at least a short time. Few get through it the first time in less than 4 hours.