Some use them as just a substitute for their sinker and an additional bait in the water. Others rig it like a bucktail and add a teaser above as mentioned.
I've used them in the past with decent success. Right out of the pack they do seem to have a greater tendency to allow the fluke to shake free thus many remove the hook it comes with and add a short piece of leader to attach the hook to it.
Personally I use a rig that a gentleman Kil Song showed my buddy with very good success. We call it the Kil-R rig. Fishfinder type setup where the chrome ball is used for the sinker without any hook. The actual rig is made up using fairly heavy, stiff leader with a hook snelled at the end and a dropper tied in the middle to attach another hook or teaser. Total length of the leader from snelled hook to swivel is about 24-30"
The chrome ball adds flash which supposedly attracts the fish and by bouncing with fairly high rod raises, makes both hook "dance" enticingly.
Seems best results with using the chrome ball jigs aka fluke mines aka crazy eyes is when sand eels are present. Similar flash maybe
Definitely something to add to your arsenal of fluke tactics.
