I think it's a given that if Jones moves to HW, he'll win some and lose some. Those losses will be devastating KOs by guys like Ngannou. He'll have a 50-50 or 75-25 win %, gets tons of brain damage and injuries, and probably only be able to fight another 3-5 years eating that kind of punishment. Meanwhile at LHW, he's winning virtually 100% of the time. He's not eating any brain damage and his body is staying fine outside of the last fight. It's steady money. He could fight for another decade like this and retire healthy. 3-5 more years and a fucked up body and brain? Or 10 more years and a pristine body and brain? Hmmmm what would you choose?