Photos from the Colorado State Guest Posing. He looks ok from the front but his glutes/hams/back conditioning look more than 4 weeks out. Either way Shrek Taylor is a monster.
In these pics he does look well over 320 but I would bet money he hasn't actually stepped on stage at 300+ yet. I saw him at the gym this time last year before the Europa and it would be a stretch to say he was 300lbs then around 3-4 weeks out. Unless he's put on 15-20 lbs of muscle this year then I think he'll be right around 300.
Think about top pros like Jay, Ronnie, or Yates. Conditioning being equal, their reported Mr. O weight only increases by 5-10lbs each year, and even then its stretched a couple lbs for the magazines/fans. An amateur might be able to make those kind of big gains between their first few contests but Quincy's been at this for quite awhile..