"Lower your handle."
I've heard it before, and there's a good chance you have too. But, come on. There's a 5.7 liter Indmar powering down the lake, and you're expected to push the handle low? Good luck. Even if you have super-human lats and succeed, you and your coach may be missing the point.
What really needs to be lowered is your anchor point, or where your pull is being directed. I describe your anchor point as the point at which your arms separate from your torso. If your arms leave your torso at shoulder height, your anchor point is high. If your arms are running down your sides, your anchor point will be low. Obviously, the latter is the more ideal, but again, how do you get your handle that low?
Your handle can't move while the rope is under load. Therefore, it is not where your handle is located that's important, it's how your body is stacked in relation to the handle. To have your handle low in relation to your body, you must simply have your hips high to the handle. This begins before your gate pull-out. Standing alongside the wakes, pay attention to where yours begin to leave your body. If it is at chest height, stand taller by ensuring your hips are high, over your feet. This will bring your chest up, and your shoulders back. Because your handle doesn't really move, it will now be lower in relation to your hips. The lower your arms leave your sides, the more the pull will be directed through your entire back, making you stronger and more balanced in your cut.