Mr. Grouper, I'm coming for you!

There is a large grouper hanging out under our boat lift.  He is tormenting me by taking my bait when I am on a very light rod.  I've gotten him to eat once on a heavy rod but he still cut me off on the structure.  I think I've got him figured out now.  I spooled up 50 lbs braid on my rod and moved up to 60 lbs leader.  Tonight Mr. Grouper I will invite you to dinner.