Bro and I went out in his boat today. Picked up a dozen gogs from Target. We went to our normal area just south of inlet in about 200 ft of water. There was a slight north current with a N-NE wind. While bro played with his kite I put out the gog on float and a free runner. The floater got hit by a small dolphin. Had to release.
Reset free runner. It gets hit again, about a 30 lbs king. We're in around 80ft now. Bro decides to redo drift back at 200.
Short time later, free runner gets nailed again, keeper dolphin, about 15-20 lbs. Bro still hasn't had a hit on his kite's 3 baits. Reset free runner, this time a sailfish. We manage to get it to the boat and release.
We are pretty happy at this time even though his kite hasn't produced anything. Final reset to 200. I drop a chunk of gog down and catch a remora. joy. We get to about 80 ft and bro says lets start bringing them. No sooner did we start, his kite finally gets hit, a double of sails. I take the middle rod, he gets the far. His jumps off, mine doesn't, game on. He's ripping line off the reel. Bro gets kite and other rods in and we start a chase. Finally gaining line. Boat is stopped and sail does a lap around with me. I had to pass rod off to bro. Guess I'm still out of shape from the cancer stuff. He ends up doing three more laps around. He's 6'6 and now he is tired. He passes rod back to me. We get sail close to boat, leader it, and release. What an awesome day! We haven't had one like that in a long time.

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Pura Vida!
As for "on a float", could be with a balloon trailing the bait by a few feet to keep it on or near the surface, which is what a kite does.
Frozen sardines are usually hooked with a double or triple hook rig and left to float out behind the boat on the drift.
Pura Vida!
Some people fish them on top (with a float). Some people fish them down low (with a weight). Some people fish them center column. Some people let them go wherever they want to go (free runner). There are different tricks for getting them into different places. Kites keep them at the highest possible point in the water column. This is the most difficult method to do well.
Most people use circle hooks with gogs, so that if you get a bite from a release-only fish like a sailfish, it will not get hurt worse then it has to.
A lot of things hit gogs. Sailfish, Kings & Mahi are probably the most common catches around here.
Guys on a budget usually fish cut bait or frozen bait.
It goes between main line and leader. My leaders are about 4-6 ft fluorocarbon attached to about a foot of 40-60 lbs surfstrand bare wire and #4-7 circle hooks depending on size of bait. We hook all non kite baits using rubberbands through the nose in case we have troll them. For the most part kite baits are hooked in front of dorsal using rubberbands rubberband. Same leaders are used. We use rubberbands to hold fluorescent markers high enough on main line so we can see them.
Greg,
2017 Cape Horn 24OS