Now that the hud displays a tenth precision, if you target say 50.0 % you may jump from 49.9 to 50.1 and vice versa. Of course that depends on how your mouse speed is tuned on your computer, how precise your gesture is, but all in all it's difficult to go to the value you want.
Of course you can edit the numerical value in the Look tab but fact is a gesture that was previously easy on content panel became less easy.

Shanliang made to me a suggest: moving the divider while Shift key is maintained pressed would move the divider by +1 / -1 jumps only ... what do you think ?