Still trying to prepare for the spring and trolling in general. I've picked up some tandems rigs to run and plan on running an umbrella or two. My question is what kind of swivels do you use? Type and size would help. Also, can you explain the differences of the swivels and when they should be used, attaching to the rig, connecting inline sinkers etc. Like I said I'm still trying to learn and set myself up for trolling. Hopfully I can get everything I need this weekend at the flea market.