Ummm...I vacillating back an forth on the topshot thing, but for party boats I'd put on a topshot of 100 yards. If you have spectra as your main line, you'd better be watching your line well when your bait is swimming. People get pissed off when you saw them off. With light flouro and flouro-spectra setup, I'd sometimes snap that flouro if the fish hits close to the boat. That's why that blackwater stuff is nice, because it has a bit of stretch to it.
Oh and good luck on the trip...as you've probably been told, your 500 is more than sufficient. If you have an SL20, that's actually probably sufficient for most of the fish. The 500 can handle the rest.
For your rods, I like longer...but don't use the upper rating on the rod as your working weight. if your rod is rated 15-20-30, then you should count it as a 20 lb rod.
Trigger sticks are great for casting, but you can't use a belt with them.
Once again, have fun
