Wlad and Lewis were already far bette than Carnera before Steward started training them, Primo just didn`t have it, Lewis was an olympc gold medalist.
I haven't seen Carnera on video in awhile so I did a search and found this post I made about him. "From what I've seen Carnera looks like a better athlete than the others (old time big fighters) but he lacked fighting instinct and he did not seem well trained. He is probably the only fighter I've even seen who fought often on the toe of his front foot with his front heel up...no idea why he did it or why his trainer didn't correct it. If Carnera had been born into the Fury family and brought up around boxing, he might have been a force. As it was, he had more in common with Mark Gastineau in the ring than Tyson Fury. Carnera was big, strong, and athletic, but not a boxer." (https://www.boxingforum24.com/threads/why-were-the-old-giants-bad.687225/page-3#post-21739347) If a trainer was able to connect with Carnera, and IF PC wanted to learn, if he was taught and used good fundamentals, (especially to get off of his front toes), he'd probably be above Max Baer level at least.
I honestly think that Carnera's handlers wrung every drop of talent they could out of him. They brought in Abe Attell to train him, and he seems to have done a very good job. They got him as far as it was possible to get him, and probably a bit further than many would have got him. The bottom line is that he reached his level. Now Jess Willard for contrast, is a fighter where the right trainer might have produced a different outcome.
Assuming Carnera is physically identical and the impact of Steward is limited to technical and strategic optimisation, then I still pick Baer. Perhaps not in quite as dominant and destructive a fashion, though likely still by stoppage. Lewis and Wlad were vastly more athletic than Primo and that altheticism was a prerequisite for the successful deployment of the style they adopted under Manny.
I suspect Wlad and Lewis both had more high twitch muscle fiber than Primo. They certainly both had faster hands, were lighter on their feet, better co-ordinated and were far more explosive punchers. They were huge athletic men. Canera was a huge man.
How much you know dictates success in boxing, if he could be taught how to deal with Baer and kept his wits about him it could be done.
That's a pretty fair post i reckon. It was also one of the nights where Baer was actually really up for the cup. Primo certainly made strides as a fighter over time but his ceiling was limited. So CT i don't think too much would change, certainly not enough to change the outcome.
