Not all split rings are created equal. We have tested many over the years and have decided that Decoy makes the best ones out there. Decoy split rings are extremely strong and with superb memory. Meaning despite repeated opening and closing with split ring pliers to install all manner of hooks and lures, they always return to their original tightly wound state. Decoy rings are well known for this reliability. Made in Japan from the highest quality corrosion resistant stainless steel. Perfect for connecting your Assist Hooks with a solid ring and to the jig. It's unique material blend and processing will not open up even after repeated use. They are extremely reliable and stong. We have all used inferior rings before that will lose their shape after installing a hook on them. Not so with Decoy split rings.
Typically we like to use a split ring as the primary connector. Tie the Shock leader to a good quality swivel (we try to avoid snap swivels as that is just one more thing that could fail), swivel then connects to the best split ring you can get. The jig then connects to the split ring. Assist hooks are looped onto a solid ring and the solid ring then connected to the split ring. This way you can change the solid ring with hooks OR/AND the jig at anytime without having to tie any new knots. Basically you use the split ring in place of the snap on a snap swivel. Stronger and much more reliable. This is the split ring centric style of terminal rigging for jigs. Once you have used these Decoy split rings you won't want to use any other brand.
#8 Heavy Duty size is best for really heavy applications with large/heavy jigs and large 4/0 and 5/0 trebles to large GT poppers/stickbaits.
#7 Medium Duty size are suitable for 180-300g jigs and large lures/poppers 180-250mm and with 3/0 to 4/0 trebles
#6 Medium Duty size are suitable for 150-180g jigs and lures/poppers 150-180mm
#5 Medium Duty size are suitable for 100-150g jigs and lures/poppers 100-150mm
Select Size#5 (60lb) (20 pack) Medium Class, #6 (75lb) (15 pack) Medium Class, #7 (90lb) (15 pack) Medium Class, #8 (150lb) (10 pack) Heavy Class