Exactly how much throw 140% would be depends on how all of the rest of the linkages are adjusted. Mechanically the throws can be adjusted so 100% is (let's say) 10 degree deflection or 70 degree defection, just to quickly throw out some random numbers. From there you determine where your various sub-rates take you. If you apply 130% to a 10 degree deflection on most planes it will still be minimally maneuverable whereas 140% of 70 degrees would be a pretty major event.

One persons "rocks" setting is another persons "docile" setting on the same plane.