@Captplaystation, "makes me think the speed at the end of the R/W may have been fairly substantial , as I imagine that goo was fairly effective as a retardation device."
Spot on about the speed, and the goo was fully waterlogged and ankle deep when standing on it. Thankfully.
A query, when are the overwing exits used, always in an emergency evac or just when the C reckons they're needed?