When you say "cover my gear", are you also fairing the trailing edge of the aft leg? Or just leaving it round? They had this all figured out decades ago, hard to believe it's still a point of discussion! OF COURSE covered AND faired gear will be less draggy then naked gear. Whether you notice or not isn't the point, the extra drag is there regardless, also the lessened climb and range. There's nothing special about a Super Cub in this regard, other then perhaps some excess power to mask the effects, but they are still there. Fairing the aft leg is as easy as going to any lumber yard and getting door casing, gluing 2 pieces together, and then ripping a 45 degree angle in the front, a notch in effect to cup the chrome moly. Use JB Weld to attach it to the CM. It will have a mechanically stout blunt trailing edge,about 5/16", (which is less draggy then a sharp trailing edge, unless that sharp trailing edge is so elongated that it is then cleaner but now very fragile) in about 2 1/2" of width, with the wide part being 1 1/4" or so. That can be adjusted to meet the tubing dia. so it all matches up. So now, instead of TWO round tubes out in the airflow, you have "less" then one, just the leading edge of the forward leg, NO turbulence between the two legs, and a faired rear leg.