Digger --
Interesting. I would suggest you try one more experiment. Attach about 24 oz. of weight, and see how it feels. How much weight is "enough," differs for each person. Some folks feel improvement by "partially" balancing the machine, but others don't experience the improvement until the machine is FULLY balanced. And to fully balance the machine, with 11" coil, takes 24 to 25 oz. of weight.
Try it with that amount, and see what you feel...
YES, the machine will be 1 1/2 pounds heavier, overall, but, there will be ZERO nose heaviness, such that the machine will basically "float" in your hand...that same feeling you get when carrying the piece of lumber, in my "lumber" analogy, at the perfect center of the board...
Steve