Went out Saturday night on the Missouri with brother and friend. I caught my biggest blue on rod and reel. He weighed in at 30 lbs and 11 ounces. Caught him on Asian Carp in 17' of water along the main channel at 2:00 a.m. We also caught two smaller blues (couple lbs each), one flat about three lbs, and two channels (one went 6 lbs). I had another good one on about 6:45 this morning but broke off. Do you guys retie your rigs after catching a big fish? I had the second fish on the same rod. The knot broke on the leader where it was tied to swivel with a palymar knot. I was using 40 lb test mono. If this is not a good knot, what type knot do you guys use?