I want to start using trailer hooks on my spinner baits but I'm not sure what size to use. I plan on going with either a 2 or 3 ought

Strike King makes a trailer hook that comes with black shrink wrapping over the eye to hold it in place. It's a 2/0 size as are most trailer hooks and they come in a 4-pack. Good move going to the trailer hook. I even use these on my buzzfrogs.

You typically match the size trailer hook to the size bait and the hook that bait uses. For example if you are fishing a 3/8oz bait it probably has a 3/0 or 4/0 hook so you would use a 3/0 or 4/0 trailer hook. If you are using a trailer around a lot of cover you can down size a little but no more than 1 size smaller.

I use a 2/0 with my buzzbaits and 1/4 oz. spinnerbaits, but it's hard for me to see a significant difference between 2/0 and 3/0.

Strike King makes a trailer hook that comes with black shrink wrapping over the eye to hold it in place. It's a 2/0 size as are most trailer hooks and they come in a 4-pack. Good move going to the trailer hook. I even use these on my buzzfrogs.

They actually make 1/0, 2/0, 3/0 sizes