For what it's worth, as a relative newbie of 3 years, for UK ( well Channel Island) spearing in shallow water, with no sharks etc., I have evolved this float and stringer arrangement on the KISS principle, but also following the advice of very experienced local spearos.
Float line is washing line. The weight is a lead sash weight, which can be unclipped from the back of my weight belt to anchor it if I'm going into thick weed. The float was a small swimming float and the flag was given to me by a dive shop - it had been taken back as it broke off an Omer inflatable float. Stainless bungee straps from a marine shop.The stringer is an Omer one replaced with nylon line.
Float line is washing line. The weight is a lead sash weight, which can be unclipped from the back of my weight belt to anchor it if I'm going into thick weed. The float was a small swimming float and the flag was given to me by a dive shop - it had been taken back as it broke off an Omer inflatable float. Stainless bungee straps from a marine shop.The stringer is an Omer one replaced with nylon line.