I'm finally ordering a jigging setup after talking about doing so for months. I am going with a Accurate B2-665N on a OTI 5'6" jigging rod. This will be my first jigging setup and I have some pretty basic (stupid?) questions... 1. Is the OTI DepthFinder Line sold in 100 yard spools? So if you were to spool a reel with 500 yards, you'd be tieing 100 yard spools together? If that's the case, what knots are suggested? 2. I'll be jigging for tuna and amberjack this summer... what size wind-on leader would be advisable? 3. Snap swivel from the leader to the jig, correct? I searched around and didn't find the answers to these. Sorry for the stupid questions... but have to learn sometime. Thanks.