Spear tips

I am not a big fan of the trident tip. While it is great for small fish, I feel that it really lacks holding power on large or tough fish. Personally, I would recommend a tricut tip with a single flopper. This is what I use, except mine is a rock point being as i usually use my polespear around rocks and reefs. If you aren't likely to be hitting rocks often, the tricut will penetrate better. I feel as though the double floppers are just too heavy, slow, and don't penetrate well.

If you are still worried about fish breaking off, you can try a spinner tip. I have found this unnecessary, and I don't know how much more holding power it actually provides. A buddy of mine has a breakaway tip. It works great. It is very thin and quick, but also expensive.

My personal recommendation is to go with the single barb tricut tip. You can get one really cheap...about six dollars. The breakaway tip is great but will cost much more. Get one of these if thr first one doesn't work.

GET A GUN and never look back. The pole spears are good for perch and really small stuff but if you want to shoot real fish it is much much easier to get a gun. You could find a gun for a little more than a quality pole spear will cost ya. And it never fails that the first time you go out with that pole spear you will see something big (or descent rather) and it won't hold on pole spear and it will just make you mad. I've been there done that.

Prangers hold well and have a great chance of stunning the fish.
They are slow though.