if overpowered it shouldn' really be a problem to complete gybe even when bouncing over the back of a couple of swells. Main problem here is usually:
- you might lack commitment
- lack of down force
if you loose your commitment while "bouncing" (ask tigger, a good friend of winnie the pooh) you automatically ease up on downforce -> boards sinks in on the back, breaks kick in, end of story.
lean in, head down, oversheet and lean forward and actively keep issuing down force (pull the boom down), and just continue as always and round you go.