Russ, you make some very good points.
Back in the day when I flew Hughes blades, I had one pair with the stock tip weights, and a second pair with the weights removed.
The weighted blades were great for Xcountry flying, but they were dramaticly different manouvering characteristics. The heavier blades were sluggish as compared to the light ones. They responded to control inputs entirely different, giving them an entirely different "feel", making difficult adjusting from one to the other. Most notably landing!
After flying the light blades for a time and switching to the weighted blades, my first few landings were always ..."less than elegant"! The heavy blades required rounding out and loading consideably earlier, or you could just mush thru and smack pretty hard! The "feel" for the heavy blades came pretty quick, but then when switching back to the light blades, I would invariably flair too high a couple of times before my reflexes readjusted.
I have not flown the heavy Dragon wings, but I suspect switching back and forth would yield simular results. Maybe not a good idea.