I've discovered that I can do a full ROM olympic squat more than I power squat. I am now in the process of training my power squat. Obviously, this discrepancy between my oly squat and olympic squat is due to a weak posterior chaic. I tend to have my hardest time at the bottom of the lift, and I round over. My SLdeadlift numbers are way way higher than my squat numbers, so I'm assuming this isn't due to a weak back. Could abs be an issue? I rarely train them, and they are one of my worst muscle groups.
Are things like romanian deadlifts, good mornings, and ab work my number 1 priorities at this point, or are there better exercises that I'd use to bring up my weak points? Thanks in advance.