With BK. I think a few things have slowed down the progress. Most being health but I always thought given the height and size of his dad Scott 6-6 and his Uncle Brian 6/8 or 9 (and much larger frame that Scott) and also how much he grew each year from 8th grade to SR that he had more growing left both ways.
But I am not sure he has gotten any taller and he seems to have a tapeworm like dad. Doesn't seem to keep as much weight on once he starts practicing hard. Maybe that metabolism slows down midway through college like a lot of us. Of course beer and Falbo's pizza & Panchero's played a factor in mine.
Tanner- 265 wasn't so much for wrestling as that's what a DE needs to be at this level. Ben has good speed but not sure its quite D1 LB speed. Id love to see him at 260 with a hand on the ground as he had an insane amount of tackles for loss in his HS career.
I don't think he can ever be a Karl Klug type transformation but I can still see BK in the mold of a Matt Roth, Joe Evans or Mitch King size wise.
Off topic FB- IMO Cam Buffington will be a great middle LB.