Hey Glen
Happy New Year.
Widen your grip to start. At least a hand-width wider than you have it here. Then get the bar in the right spot on your back. (see Nick D's video on youtube about bar position in the squat recently) After it's in the right spot, under the spines of the scaps, you can walk your hands in toward your shoulders and squeeze the scaps together to get everything tighter, while keeping the wrists more neutral. Then lift your chest and drop your elbows. You're starting with a narrower grip, cranked up elbows, and flexed wrists. This combination can have the unintended effect of shoving the bar up your back while you squat, and keeping you from leaning over so you can drive the hips out of the bottom.
Of course you'd be happy. I've never worked with an Aussie that wasn't happy suffering unnecessarily. Haha.
It may take a little extra stretching or it could work itself out through the normal course of warmups, where you're able to get the hands even closer by the time the work set comes around. My empty bar warm-up starts with the index finger on the rings and by the time I'm ready for work sets, I'm three finger-widths closer. The grip will be uncomfortable, but should not be painful and distracting to the point that it affects your ability to squat properly.