Wife and I headed out of Stono Inlet at 6am hoping to find a good weed line, rip, etc. Ran out to 900’, found nothing but scattered weeds. Started trolling in the scattered weeds. Nothing for a 1 hour. Picked up and headed SW. More scattered weeds at 400’.Picked up 2 slingers quick. We decided to increase our spread from 2 lines to 3 lines. Started trolling over some numbers I have. Trolled for about 30 minutes and line gets hit. She grabs the reel and nothing, I put the reel in free spool for a second and tighten the drag and Baam! It takes off and almost spools the tld 30. The fight was on. Got it close to the boat after 1 hour and it tail walked 4 times. 2 sharks were trailing. After a solid 2 hours of fight, never sitting the rod down, she finally gets the Blue Marlin to the boat. We made a good release. It was a great experience.