As I have a ash shaft on the way and a beard I don't plan to start resting my chin on it. It sounds rather unpleasant. But I digress, how can anyone shoot with the cue rubbing their chin?
I am also a chest player.
I use it as more of guide not a finishing point.
It's important the back hand delivers from the hip , the old expression "Shoot from the hip"
When you drop down on the shot it helps that the back foot, hip and chest, find their center along with your eyes.
Deliver the cue through the center and things may just work out with a little practice.
Shoot from the hip and let the cue ride the foot,chest and eyes.
Sincerely:SS
If you're making balls consistently it doesn't matter what you're stroke is like...The balls don't know any difference.
Focus more on playing as much and with as many good players as you can. Imo experience is the best teacher...