Fishfinder or knocker rig for grouper?
I just picked up my new rod today and I am at the point where I must decide which rig to put on it for grouper bottom fishing. I will be fishing this rig off a party boat. When I went out last time I used the rods that were on the boat and they were set up with fish finder rigs. I have been reading a lot about bottom rigs for grouper and found that the knocker rigs seem to be very popular. What rig works better and why? If I decide to go with the knocker rig, do I use a swivel to attach the floro leader to the mono main line or should I use a double uni or some other knot to join the leader to the mono main line? Thanks for your thoughts.