Welcome Sean,
A couple of articles for you to read below. This time of year the fish aren’t feeding on surface much and are down deep so livebaiting is a decent way to go. Silver trevs would work great as a livie but we don’t see them in the seaway too often. Bigeye trevs would be okay but would more likely get you a shark than anything else. Best way to get a GT this time of year would be trolling a deep diving minnow around the Northern Y area(see map 1).
Those troublesome Yellowtail Kingfish
Livebaiting the Seaway