Where did Goldwing enter the armored car arena, the bike I owned prior to buying my VTX was a 'Wing, believe me, maneuvering 1200+ pounds, by the time I add my own 250, my wife's 150, and 860 for the 'Wing, is not really all that much different than my CBR, counter-steering, braking, acceleration, all enter into the equation, pretty much in the same ratio as my CBR. I took my first MSF course on a HD Sportster, the instructor was told by another participant that it was easier to take the course in a smaller bike than in one of the bigger bikes. He ran through the obstacle course in his Ultra-Classic, both at twice the speed, and half the speed without a single foot touching the blacktop, on either run. Goldwing's are still equally maneuverable, and exponentially more powerful than our CBR's. Google "Goldwing drill team" you'll be surprised. I had 40,000 plus miles on my 'Wing, much of it in city traffic, in some of the busiest cities, Boston, Chicago, Washington, DC, New York, etc. They are heavier, but not "sluggish".
Another thing I haven't seen mentioned is where to drive in traffic, or, even alone on the road. I learned to ride years before MSF, but the guy that showed me the ropes told me to, as much as possible, stay in the left part of the lane. Reasoning that a person approaching from the opposite direction will be looking in the direction of where a driver will be, to get eye contact. The same theory works when approaching from the front or rear of a traveling vehicle, they'll be looking for a driver, 99.9% of the time, that will be in the left most part of the road. Few people "see" a bike on the right side of the lane, the 'passenger' side if you will.
There is an excellent reason to avoid the center portion of your lane, if an engine blows, or if one is leaking, the oil will be dropped in the center, between the tires of the cages. This is much more hazardous at the beginning, and the first hours during a rain storm. Tires of motorcycles tend to get less surface contact the faster they go, in other words, at X speed, there is, say, 2 square inches, at X times 60 mph, there might be 1/2 square inch, the actual numbers may be different, but the theory is still valid. If we are in the center of the lane at the beginning portion of a rain, then that 1/2 square inch is covered in that oil that surfaces during the rain, oiled tires are not nearly as 'sticky' as dry ones, thus more likely to slip. Staying on the left side, the tires of the cages are picking up the little bit that goes into the left.
Doc