Agreed with just cutting it in. I love to spin my cue ball, but trying to twist balls in without a need isn't a good recipe. It's one of those things that works ok on your home table but just doesn't hold up moving between different equipment under pressure. But a lot of my students really like trying to throw balls in to hold the cue ball. It generally isn't needed. You can get lower on the cue ball if you stay on the vertical axis (the cue ball is a sphere, not a cube, so going off center means you have to come up a little vertically) and a very finesse stun is usually much better.
Not only is throwing the ball inconsistent, even just a little gearing english can even be troublesome. I was working on a drill with a lot of table length shots and all of my life I have used a 1/4 to 1/2 tip of gearing oustide. Well, I couldn't complete the drill. It was just too many full court shots and I wasn't quite getting it done. I backed off the spin and started using low center and boom, my accuracy improved. It was like the long shots became too speed sensitive, they would just twist a little on the way there or throw a little unpredictably and it wasn't quite working.
But oddly enough on shorter versions of those shots I still prefer the gearing outside. When you are closer the curve just isn't a factor because you can slide all the way to the object ball.
I asked a friend who plays very strong about this. I set up a close version of the shot and asked him if he liked gearing outside or center. He liked the gearing outside. Then I set up the long version of the shot and he immediately said "Well now it's just center". Funny. I guess many players have figured this out already.