Re: Downrigger Release
At the risk of sounding extremely sarcastic, a small one?
Seriously, I would first ask what kind of downrigger you run, how heavy the weight and expected weight of target fish. I run Scotty electrics and 10# balls most all of the time. I switch between the lightest releases that Scotty makes for Kokanee and Sockeye but bump up the the big release for King Salmon and Halibut.
The type of rod you use makes a difference too. For example, my Kokanee rod is fiberglass and floppy as heck. Even with the lightest releases clipped at the very end, it sometimes doesn't pop when I get a fish on. On the other hand, my Halibut rod is stiff as rebar and it pops every time a fish hits. Different fish, different rods.....lots of variables to consider. Even with the lightest release, you might have to keep a keen eye on your rod tip. But that's why we fish, right?