[Fstbttms]

the Panama Canal and across the South Pacific to Australia. We have been advised to try to find out what people are using and/or recommending for this area.

"This area"? You are taking about a stretch of water that spans half the planet! You are unlikely to find any single anti fouling product that works really well in all the areas you plan to have the boat. Fouling conditions are too region-specific and there is no magic bullet that will work well everywhere.

 

[Fstbttms]

LOL... anything that can work in the tropics, will generally be overkill in more temperate areas.

In theory. In practice, not so much.