Yes, this is the technique for low balls.
The frame tip points to the ground.
Then you lift your arm for topspin and simultaneously flick your wrist to get it up over the net. Actually a pretty safe shot as it is almost impossible to fly it or hit it long from a ball at your ankles. So you can swing very hard and get wonderful top. But it will not go deep unless you really work to get it up.
Those who contend you cannot hit low balls well with a W or H grip, are stuck hitting with Eastern technique of solid wrist and little/no suppination. W and H grips require completely different arm/wrist motions.