We've chicken-gybed even while racing when conditions warrant.. and it's not always a dead-simple manoeuvre either... It's best to trim the sails throughout the 'harden-up and tack and falling off' lest the boat slow enough to settle into irons.
1984 Fast/Nicholson 345 "FastForward"
".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)