That A/B split looks fine. If the low bar position is aggravating you, cycle in some low bar stretches (Low Bar Position Stretch | On the Platform - YouTube). For people where the position is just too painful, I will often have them high bar squat for a while as they do this stretch and then have them return to low bar squatting. Getting the lifters may indeed help with your depth. Also make sure your stance is wide enough (shoulder width).