[Saba Slayer]

If you guys have the Eclipse net...cut off that dumb bungee and hook...it gets caught on everything. Replace it with a zip tie attached to the leg and around the hoop and you'll be much happier.
You might think about getting an Ambush net if you want to use a conical style. With their smaller size, they are easier to handle on the kayak. The Eclipse is 36" wide and sits up higher and the Ambush is 32" and sits lower.
Those flat style nets are more efficient in shallow water and with a shorter soak time but they require better pulling technique. The conicals excel in the deep water and a longer soak time and are more forgiving on the technique.
As Destroyer said, you can use short pieces of chain or use a galvanized chain with a smaller diameter. Try to get about 3 or 4 pounds on there.