The best thing to do on any yacht with the traveller on the coachroof is to never ever lock it off on the clutch as with load on the main sheet the clutch can be almost impossible to release.
You should leave the clutch jaws fully open and take the main sheet back to the self tailing winch on the coach roof. 2 turns round the winch and locked off in the winch jaw is more than enough and it is then very easy to flip off and depower in a gust.
In my experience this works really well with 2 on board but could be a bit of a problem if singlehanded so reefing early is the better bet. Worst case though is that you will stall and round up, and as you do round up pop forward an let the main off.