I own both Hightower and Royster in Sports Outlaw's Landry league (dynasty) but I'm not expecting anything from either of them this season. At most, I will have the option of starting one of those guys a few times this year before Shanny changes his mind.
The only one I'm even touching in redraft leagues is Royster, due to the praise he's received. But I'm fully aware that I might need to cut him for roster space at the first sign of danger.
As for Hightower, we're in the 15th round of SOFFL and he is still available.