I'm not a big Circle-Hook fan myself, I don't like the thought of "letting the fish hook itself", which is how the circle hooks are supposed to work. I'd rather go out swinging then just let the ball hit the bat. (if you get my analogy)
Although, I don't agree with Steve that they're a "big gimmick", I'm sure they help in
some way, ....I DO AGREE with Steve that your "hook-up" percentage WILL go UP when using the "J-Hook".
IMO - Answers to your questions//
1a. The ONLY advantage to using a Circle Hook, your chances of Gut-Hooking a fish may be lower,,, but it still depends on the size of your bait and how long you let the fish "Run". With a smaller piece of bait, the Bass can swallow it sooner, if that hook makes it down it's throat, your still in the same Gut-Hook situation.
1b. Disadvantage - you will drop more fish, it's not as satisfying when you're not setting the hook yourself, it's a little more annoying putting on some baits...
2. Trying to set the hook yourself while using a Circle Hook. You're supposed to let the line tighten and hope for the hook to find the corner of the fish's mouth on it's way out of it's mouth.
