Rear-fingered grip, and practicing these shots until you're comfortable with them
I agree about angling the cue to match the downward angle of the top of the cushion.
Also, to elaborate on the tight grip idea: I like to use my grip hand to press the shaft downward onto my bridge for these shots. This means tightening the grip, and using your rear fingers and wrist to press the front of the cue downward. It's not a good way to create a powerful stroke, but on these shots power is not your concern.
And lastly, make sure you step back so you can get a good lock on the line from the center of the CB to the point of aim as you're approaching the shot and placing your bridge hand. On these shots, more than any other, hitting the center axis of the CB very precisely is of paramount importance (since you will get significant swerve if you don't). You can't hit the center of the ball unless you place your bridge hand extremely precisely such that the bridge, the center of the CB, and the point of aim are collinear. Having a visual lock on that line as you step in and place your bridge hand may be the most important part of hitting these shots accurately.
-Andrew
Andrew:
Great info, especially the part about the grip. I personally use a rear-fingered (also called "rear-of-the-hand") grip when I play these shots, especially if I have to figure out a way to jack up and punch the cue ball into the table a bit, for a stop shot. (Which, if it's not the money ball, Murphy's Law states that shooting this shot by hitting the top of the cue ball means you'll overrun position for the next shot, right?
)
Keeping the cue tip down on the ball is paramount to avoiding a miscue. Like Neil posted, a level cue "is not 'it'." You have to follow the slight downward contour of the cushion. Using a rear-fingered grip helps to keep the cue tip pressed downward onto the cushion (or your hand bridge, depending on the shot) so as to avoid the miscue. Obviously, an evenly-chalked tip is mandatory for this shot.
One thing, though, and it should be obvious. Pool players seem to universally despise this type of shot, yet they don't do anything about it. How about practicing this shot? Snooker players do, because "cueball-frozen-to-the-cushion" safeties are very common in snooker.
Instead of going "ugh, not this gosh-damned shot again," why not make it one of your favorite shots to practice? How about incorporating into your practice routine a full diagonal table length shot,
object ball in the center spot of the table (dead smack center between the two side pockets), cue ball frozen to the cushion by one of the corner pockets (say, a half-diamond away from the corner pocket on the short rail), and shooting the object ball straight into the far corner pocket? Personally, I practice these for 5 or 10 minutes at various points on the table. I don't even bat an eye when these shots come up -- especially in my favored game of 1-pocket, where I'm frozen on the cushion and I have to bank a shot back at me, towards my pocket.
The only way to get better at these shots, is to practice them. The tips presented here in this thread by various posters all offer great advice.
Hope this is helpful,
-Sean