I have a 2012 Deluxe and it is cavitating in the white wash in the surf, worse than usual.

There is no loss of power as it still reaches decent top speed with two people and a heap of surfing gear on it, in flat water or once clear of the foam / white water

I think from reading up the prop might need cleaning up, or replacing.

The old man is a mechanic and happy to help, chasing a service manual. Found one on ebay for $40, wondering if anyone can point me towards any other sources