Pause squats could definitely help, if you pause for a count of 1 or 2 then explode out of the hole. CT included 1.5 squats in one of his programs that helped me a lot, where you start the squat normally, go down into the hole, come up half way, back down into the hole, then all the way up (that makes 1 rep). In the program (915 if you're interested), its done for sets of 3 to 5. Start light and build your way up. Hope this helps!