Thanks guys
The conditions were not too bad:
Sea state - F4 (verging on a 5 early afternoon)
Vis - 4 miles at the murkiest but generally 15+
Temp - 6ºC but felt like 1 or 2!
It took four hours each way, ten hours on the water all up with a 6am start.
I must confess re petrol, we went for the budget option and brought our own. One pound something versus thirteen bob!
You guys should get blue petrol, it is great.