Disclaimer: CJ, the owner of Neritic, is my best friend and I've personally had quite a bit of input on the design and development of these spears.
They are heavy duty spears designed with the intent of landing big fish and world records. They can also be disassembled for travel or configured in different lengths. CJ's dad runs a machine shop that manufactures high end aviation parts. Fuel pumps and other critical precision parts. The spears were a collaboration between the two. CJ's spearfishing expertise and his dad's machining and materials expertise. Occasionally I translated between the two of them. (my background is mechanical engineering) I was also one of the first testers.
The Neritic spears are made with extremely high quality (made in the USA) and CJ prides himself on customer service. Some of the main features are the ability to configure the spear into different lengths, heavy duty connectors and the tip. The slip tip that CJ developed is easily the best tip I have used for a polespear. It is a penta cut tip that is hollow ground. Similar to the most advanced arrow tips. It is EXTREMELY sharp. The other nice feature is it has a magnet in the base that holds it onto the injector rod. No rubber bands or strings to worry about.
If this sounds like a spear that fits your needs and targets and/or you have any questions about it feel free to PM me. I'm more than happy to answer any of your questions or put you in contact with CJ.