Gust response for H16;
assume that main is block to block and jib slot is open.

Crew eases main sheet
Helm eases traveller
crew tightens sheet back block to block
once main is block to block, crew continues to pull sheet which then hauls traveller to windward so helm takes up slack
hey presto - you are back where you started!

this takes a bit of practice but is great to see when it is done well.