I'm not entirely sure what you are saying in this post. I don't see an obvious change in the regs for this year. You mention "support crew" overalls needing elasticated wrists and zips.

I don't recall the regs aver stating cuffs needed elasticated wrists. They did and still do say that the person responsible for refuelling should have zipper cuffs and not pop studs. For other members of the crew the suit must meet an overall standard, but there is no stipulation over pop studs or zips etc.

Am I missing something? Are you getting this info from somewhere other than the 2016 regs?