Hydrofoil/Whale Tail Good or Bad

[EZDuzIt]

two bolts on each side of cav plate. This is not the exact one but basically the same https://www.amazon.com/SeaSense-500...ocphy=9007369&hvtargid=pla-448680793346&psc=1

Ya I have four but I think the previous owner was smart and added two more looking at it. They also had lock washers and lock nuts on it which I'll be replacing with new when I put it back on.