Yep, he trains all over. He does most of his Boxing at Adam Booths gym or King Alfred, and weights at Underground gym. But no uncommon for him to be elsewhere.
Sorry but that is rubbish. He has done/doing 2 this year, Brook Vs Gavin and Joshua Vs Whyte. Both have decent undercards. I'm not sure how many he has done over the years but it is not as many as you, and many others think.