This is pretty cool. Much opportunity for fiddling around in spreadsheets.
Heh, if I download and copy the #1 demos for my worst 1555 scores, my average rank will go down to 2.
In terms of moves per second, my slowest demo is
war9 : zodiac : 1 South, 5 East with 2.79625 seconds per move[#1] and my fastest demo is
Idiot's Castle : The Secret Elevator : 1 North, 2 East with a blistering 44.38 moves per second (thanks to Ctrl-5)
[#1] Interesting(?) fact: The time per move is capped at about 2.5 seconds, but double placement only counts as one move, but includes the times for all the placement steps, so that's how the average seems longer than it should be.