I've always done both back squats and front squats as part of my programming. However, back squatting almost always leaves me with some low back tightness and/or soreness. Obviously due to a breakdown in form. Front squats just feel natural to me, and I never have any pain or soreness from them.
My question is how important are back squats? My goal is to gain mass and get stronger. I'm not looking to compete, so are back squats necessary? I'm sure that through a good amount of work I could iron out my technique and back squat without pain, but is the juice worth the squeeze for my goals?