Though some of these tips may help you, you do not need any special wrist action, bridge placement, grip, shoulder or elbow adjustment.
Physics-wise, if you hit low on the cue ball, and with force (using anything... even an umbrella), it WILL draw. It's literally impossible for the ball to do otherwise. So if you're not getting draw, you're no longer hitting low, or you stopped hitting with enough force.
Use this test: Chalk your tip excessively. Clean off a striped ball. Now use the stripe as your cue ball. Set it up so that the number is facing straight out towards the rail. Now aim at the bottom of the circle that goes around the number (or even just at the bottom of the number). Afterwards, no matter what happens, pick up your striped cue ball. There will be a chalk mark on it showing you where you struck. If you didn't draw, I can guarantee that the mark will end up around the center of the number instead of below it.
Force yourself to hit low, don't fear a miscue... that fear can cause you to subsconsciously steer the tip upwards. Make sure you're hitting hard enough.
PS: there is one other thought... if the stick didn't change, and you didn't change, did the felt or balls change? Thick nappy felt is harder to draw on, and it can be especially hard to draw a barbox cue ball that's heavier than the other balls.
Physics-wise, if you hit low on the cue ball, and with force (using anything... even an umbrella), it WILL draw. It's literally impossible for the ball to do otherwise. So if you're not getting draw, you're no longer hitting low, or you stopped hitting with enough force.
Use this test: Chalk your tip excessively. Clean off a striped ball. Now use the stripe as your cue ball. Set it up so that the number is facing straight out towards the rail. Now aim at the bottom of the circle that goes around the number (or even just at the bottom of the number). Afterwards, no matter what happens, pick up your striped cue ball. There will be a chalk mark on it showing you where you struck. If you didn't draw, I can guarantee that the mark will end up around the center of the number instead of below it.
Force yourself to hit low, don't fear a miscue... that fear can cause you to subsconsciously steer the tip upwards. Make sure you're hitting hard enough.
PS: there is one other thought... if the stick didn't change, and you didn't change, did the felt or balls change? Thick nappy felt is harder to draw on, and it can be especially hard to draw a barbox cue ball that's heavier than the other balls.