I wouldn’t mind Bobi’s proposal, but there still needs to be a quick way to change drag strength and I belive the radial menu patent has also lapsed now (along with T-splines) so nothing that prevents McNeel from looking at the most effective solution so far:
Nobody where I work as a horizontal mouse wheel. Everybody where I work has a 3D mouse. That 3D mouse usually includes at least two buttons to assign shortcuts to, and I think this is potentially important enough that one of those could be sacrificed to pop up a menu which included drag strength (again see above) or at least pop up an existing menu to which drag strength could be added (presets for 1%, 10%, 25% etc and an off toggle would be enough).
But just like with block edit, I wonder if users will get there first…