Right, just got back from our test run...
On the whole not too bad, blasting up and down the a12, apart from the fact that when we'd been out for a while (and he'd got hot I guess), whenever we had to slow down to stop/slow maneuvers he'd just stall. No coughing or spluttering... He'd just die. Did it about 4 or 5 times on the trip home. Restarted with no problems each time though...
Haven't refuelled yet and carbs still need tuning.