Finally got my arse into gear and stopped by at DS Motorsport to grab a Cometic Rocker Gasket, nice to meet Derek, top bloke!

Anyway, I've not got the manual to hand, anybody know the torque setting on the rocker cover bolts? I know they're not mega tight, but thought I'd try and do it right!?
Tightening them from the middle outwards, iirc?