Tblock1, that post you listed I think is pretty spot on except for when it goes past the 242lbs weight class. The numbers for 275 and up are too low imo so I agree it's abit off.
That said a 242lbs RAW lifter benching 395, squatting 550, deadlifting 600 and pressing 267lbs is strong as fuck. That's a 1545 raw pl total. Consider the IPF raw belt only elite total for a 242lbs lifter is 1607...
People see so many pl totals and forget that is geared and most of those 1100-1200 pounds squats are in canvas suits with a monolift and questionable depth.
I have seen an 1100lbs squatter switch feds and his single ply squat is actually like 880-900lbs. That's an easy 200lbs drop because of weaker gear. Now take the squat suit and knee wraps out and you're looking at probably a 750-800 raw squat for a 280-300lbs guy which is still strong as fuck.
My coach is one of the strongest relatively "unknown" pl'ers ever imo. At 265lbs the guy squatted 900lbs in single ply to full squat depth, hams on calves with a medium stance and benched 500 raw. He could squat roughly 800 raw "deep".
Those numbers may seem trivial compared to geared numbers, but for raw that is obscenely powerful. His best geared single ply total was 2100ish in competition yet I personally saw him do individual lifts in training totalling 2000 raw...