ok sorry it took so long man, but yea, you just came off that injury + added gpp + the injured area likely not wanting to fire 100% for a short while after will definitely cause you to have a little performance drop. I wouldnt stop doing what youre doing now though, I think youve needed to get your gpp up for a while, and I dont think it will be long at all before you start hitting pr's on the squat, the bounding will actually HELP you do this, if you stick with it long enough to adapt.
One thing that might you help you is to focus on building up to ONE MAIN SET of squats, where you try to pr either by reps or by weight lifted, and then backing down a little and getting your volume in. That type of set up is hard to beat since you get plenty of volume for hypertrophy in, and youre only asking a PR set on ONE set total, in the workout.