New to me boat porpoising

[Goin Coastal]

Wedges aren't your answer. Look at your pic. You are trimmed almost to tilt to get it level in that pic. Trim it all the way down and take a pic. With the boat transom angle and the added exaggeration from the breakaway plate you should have plenty of negative trim tucked under already. Unless you are running the boat tucked under, adding wedge won't help. If your hull is like my Gator Trax hull, 1650 with V bow surface drive, it hates weight forward. Try running it with a full cooler up against the front deck.

EDIT: Unless you are talking about adding wedge to the transom running surface and not motor/kickoff mounting. Basically a trim tab.