Lastly there is a new product that I found which works kind of like the spacer tubing, but will allow you to use trailer hooks with larger diameter eyes as well. Simply place your trailer hook on your main hook and then slide one of these keepers over the main hook point and you’re good to go.
Side note: The Decoy Versatile Keeper is good for other things as well, like securing a soft-plastic trailer in place. Say your favorite jig doesn’t have the best trailer keeper on in it, or none at all for that matter. Just slide your soft plastic up the hook shaft and into place and then slide the Versatile Keeper up the hook and right up against the trailer and you’re done. The soft plastic trailer can no longer slide down the hook during your cast.