The CS is a strong and fairly even rolling ball. Unless you have a lot of tilt or side rotation, that drilling is certain death for the CS. I have mine pin above the ring finger and CG stacked below, roughly a 5x4 drill. I added a little polish and the ball is strong on mediums, maybe medium+ and any wet/drys. On lighter mediums, if you have enough head oil, the ball will hook a lot more than originally intended.
The particle load is on the rough side (intended for a high level of conrol and its purpose: to even out wet/drys), so for a slower play like yourself and myself, a little polish will also work wonders. But first I'd strongly urge you to redrill it, with a high pin.
Don't go grazy with the polish. Try a little at a time, til it gets you where you want to be.
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"None are so blind as those who will not see."