If you want to test your sea legs, come down and fish the Gulf of Mexico this time of year. The last three months, we've probably averaged 6-8s. If you really want to play rodeo, we have 11-13's almost every week. I'm jealous, I which I lived in Costa Rica.
Do you have trouble raising fish in that calm water? I've always had better luck with at least 2-3's on raising marlin.
I like it calm to see better and the fish seem to bite in calm water. I took notes for two years on tide, time water condition ect. and finally figured it out. It is a matter of dragging a bait in front of a fish that wants to have a bite. Sometimes you have to drag that bait several times in front of him to get him to bite or maybe not. We're always trying new tricks and some old ones.