Thanks for the help all. Confirms some things I was thinking and gives me some new things to work on as well.
I did back squats for a while, I just can't get deep on them at all without bending over too far. Front squats feel much more natural for me.
I do some DB work for chest each workout, I just don't like using them on my main lift of the day because ramping weight on them in a commercial gym is such a pain in the ass.
Currently my goal is mass gain. Progress stagnating a bit so it's probably time to ramp up calories again, I'm at about 3800-3900/day now and will add in another 250/day or so within the next week if the scale doesn't start moving. I can go into greater detail if you wish and post my entire day's worth of food, but as a general overview: on training days (5-6 days a week) my macros are about 135g/350g/315g fat/carb/protein (comes out to 3850calories, each macronutrient is 30-35% of total intake). It's a fairly high fat diet, but since I tend to accumulate fat almost entirely in my belly when I put on weight, I figured lower carbs is a good place to start. I'll toy with the ratios as I keep gaining until I figure out what works best for me, but I have to start somewhere and it seemed as good of a starting point as any.
Again, thanks for the feedback all.