No not THAT one … I think its only fair that Chris is OK I post it 
This one is boring lapping but it maybe helps to show how an LSD makes some difference. You only have to watch the first 60 seconds or so for the corner onto the short “pit straight” to see the diff working - normally the revs would go up, the speedo go to crazy speeds as the inside wheel spins up - but you can see the diff working if you look at the rev counter.
Apologies for poor resolution but I cant access Vimeo here in China …
