Thanks for all the insight Steve. I'll narrow the squat stance a bit, narrower is a bit more comfortable for me so I'll definitely give that a try and I'll be focusing on my knees.
As for the RDL, my lower back stays pretty tight, but I'll keep an eye on it next session and be sure I don't let it go near the bottom. I'll focus on keeping the bar closer in and try sticking my butt back a little more and see if that helps.
Thanks again for the help!