I don't think you need a drill cuz I'm 100% with Jim about posture being 90% of your problem.
He said to stand straighter in the approach and sink into the slide, well...it's easily done just by lightly pulling and pushing your shoulders (lats pull, traps push) down and into your back slightly--immediately, your chest'll be out, head and hands come up, and ta da! Your torso is now perpendicular to the floor. Now, soften knees and the weight will move from the toes to mid/back of the foot. Don't put all the weight into the heels. Just enough.
Jim taught me that if you start your torso like that in the approach, you'll finish the same way with head looking up and out in front of you, shoulders down away from the ears.
Once you do that, I'm betting dollars to donuts that this'll slow you down, too. Only makes sense that if you start forward, you're only going to go quicker.
Anyway, look at the timing on you! I'd kill for natural timing like you. Pair this with better posture, and you'll be seeing huge improvements immediately.
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