Just started having some fun blasting across the ocean swells and noticed my current fin ( a 35 cm JP Carve) wants to blow out a fair bit. At best it gets air and drifts sideways then if I'm lucky recovers, at worst you do a 180 and end up in a mangled heap. So, is this pilot error or do I need a specific fin for blating across lumpy ocean swells?

The outfit- 101 JP FSW with 6 mtr Hot Sail Maui (freeride style).

Cheers for any info.