I could and then misdrop to die a few seconds later. Or I could just not lock, but play as though I was manual locking from 600-1000 to finish more often. The lock delay seems to kick in just as I get a piece to a certain location so I don't have to lock or worry about mis-timing rotations.
That looked impossible to play at this speed 6 months ago, now, even if I am still looking for some speed upgrading, SHIRASE 1200 just looks insane, but doable. saves file : http://www.sendspace.com/file/mp58zf