I’ll jump in and get the answers rolling. I’m far from an expert but have had some success in the past year making the transition from meat to plastics. Hopefully one of the IDA guides or fieldstaff will chime in and fill some of the holes that my reply leaves behind.
Superdoos are a very good vertical bait. Use a large enough jighead to reach and remain in contact with the bottom, let the ‘doo fall and then give it a sharp 6-12″ snap up, then hold just off the bottom. Hold for a while. 10-20 seconds or more. Then drop, snap, and hold. I catch a lot of saugers on ‘doos, mostly because of where I have been fishing these baits since November: deep holes without a lot of current. Ringies can be fished vertical, but also pitched to riprap or wingdams, or dragged upstream or downstream.
Jighead color is something that probably requires a day-today diagnosis. Some guys will tell you that contrast is the key. Others will say that it a plain head is best. I think the best approach is to have a selection on hand, and sort through several body/head combos until the fish tell you what they want.
As I said before, James or Dustin or Jarrad or Steve or Don (I know I left some others out….sorry!) are experts at using these baits and can be a treasure trove of info and tips . Use the search feature of the website to find reports from November-March of the past couple of years to get some interesting ideas about colors, techniques and general locations.