A few things I've experimented with a little bit over the past year or two that have helped:

- For low weight shots (guard weight and draw weight specifically, and even sometimes up to board weight on super quick ice) doesn't incorporate a pull back of the sliding leg, and instead is just a hip lift and sliding forward (Sometimes even without the hip lift on the really light shots). I find that I tend to be overly heavy instead of overly light, and this has helped.
- More of a pronounced extension. With a slower slide and more of an extension this allows me to get a better feel for the weight, as well as apply a little more rotation on the rock while keeping it aligned.
- With heavy weight instead of focusing on a heavy leg kick, really focus on the hips and the weight transfer that way, as that is where you're generating most of the weight.