I think Meyer is trying to grow into being a 74kg guy its part of the reason he went 157 instead of 149. I would also imagine he does not want to be competing against yianni for a spot they seem super close. I saw someone on here say cox may go heavyweight so he does not have to cut. I'm not sure if there is any validity to that but I would certainly be interested.
Chance beat the world runner up at 79kg and 92 at the last ranking series at 86 so im guessing hes feeling pretty comfortable there. As for nashon and desanto I believe 65 is their only realistic option. The main canidates to go down seem to be suriano,vito,fix and then zain to 65 and carter to 74. Those two seem like insane cuts to me but both have legit shots if they can do it and still be effective.