a good high wind sail

[mac33]

sailing in a slalom event yesterday i got hammered.

wind 25/35, gusting maybe higher.

on a 5.0m race sail rigged for survival mode,i could not gybe as still too much power in sail.

could hardly sail in straight line as well, although this was not the biggest problem.

when i managed to gybe, i was going so deep around mark that next mark almost became an upwind leg.

many on wave sails 4m-5m doing really well.

thinking now of buying my first wave sail.

thinking 4m or less for my 67kg in winds 25+ knots.

any advice.