Try using the Trokar Pro Swim Jig mold, it uses a heavy wire flat eye hook. You also don't need to use the Trokar hook, I use the Eagle Claw 2706BP but you can also use the Mustad 32796 or the Gamakatsu 594. Then you just need to use a split ring, and for the record, I've made bladed jigs with the blade directly attached and with the split ring and I prefer the split ring, a lot more erratic action which gives me more confidence in drawing strikes but not everyone feels the same.