I've done something like 25 attempts at sprinting speed for 5BLD today to try and get a sub-4:40 on film. No successes.
Some close encounters:
2 centers out: 4:32, 4:38, 4:48, 4:50
Silly execution mistakes (accidental R moves etc): 5:10, 5:07, 5:41, 4:29, 4:35
The rest were all complete messes, because of silly execution mistakes and/or mistaking stuff. I even managed to drop the cube on one of the more promising scrambles = a complete waste of a day.
EDIT: **** RIGHT OFF. Wanted a decent 'safety' success before I went to bed and got the easiest scramble of the day.
4:44.92[2:21] b2 B' u L F d2 f u2 F' D2 L d' r L' u' F' D b' B' D2 l' d' f2 D' F d' r' f B b' U2 B2 l R r' u' f u d D2 l R u D d2 F l' L2 F' f r' d U2 b F' D2 L d2 L' b2