Right on Dan. I have been diving for years and the only time I ever nearly lost my life was when using a reel. I still use reels for the convenience but will not hesitate let go of the gun when something goes wrong.
Here are some reel rules to follow:
1) Never use a reel in water that is deeper than you can dive to the bottom and un-rock a fish.
2) If you have a fish rocked up get your buddy to come watch you retrieve it.
3) Never try and think how to untangle anything until you are on the surface.
4) Once you are on the surface start swimming towards a running fish then try and get him turned towards the boat. This technique works well with Cobia, Kingfish, Amberjacks, African Pompano, Permit and Wahoo.
5) Always have your reel set to free spool when hunting. Tighten it on the way to the surface if you are comfortable but always keep in mind getting to the surface first.
Cheers,
G.R.