I've got a 17.5' alum deep-V fishing boat with a 60hp tiller steer Merc. Occasionally, it will begin to porpoise if there's a lot of wave action. It came with a hydrofoil to get it on plane faster, but I was wondering if anyone has opinions on trim tabs, which were suggested by some boaters I know. If I trim down the engine, it will go away, but I lose about 3-4 mph (not a critical issue). I would think this probably affects fuel efficiency, though.
I've done a little reading on the subject and have put whatever heavy items that I can in the bow, which helped a little bit.