Originally Posted by
speedevil
Isn't one of the advantages of the open end/box end wrench is that you can use the QR skewer so that the lockring tool doesn't slip? You'd have to apply enough force to the rachet/flex handle to be sure that the lockring tool doesn't slip and by using the QR skewer you're only concerned with enough torque to secure the cassette.
Have I missed something?
The Campy lockring tool I have goes into the splines quite a bit deeper than those for Shimano lockrings so having it pop out under torque isn't as big an issue. I have both Park's and Shimano's own Shimano lockring tools with center pins so they are also pretty well secured in the splines and DaveSSS's technique of using a socket over the puller's hex flats and a ratchet or torque wrench works fine.