I'll try to ask enough dumb questions to keep it interesting. I'm mostly a dock/marina shooter, and night stalker so this is a learning process. I understand the basics, but if the learning curve can be straightened a little, it's worth it.

I understand most longline when the fish are "shallow". What is "shallow". Does anyone use heavier heads (1/8th) to target deeper fish, or is it better to just tightline/spider rig on deeper fish (whatever "deep") is.