FYI: Looking at other available guides:

ISTD Rock'n'Roll study notes (July 2000)

The introductory section notes that the dance is physically demanding and shouldn't be danced in high heels.

Basic and Bunny Hop from Promenade Position

Basically an unassisted MJ first move jump, is a Bronze (? beginners' ?) move:
"(56) Man then leads lady to jump away from him turning to her left to face him, making up to a half turn."
The only safety information noted is that "Both dancers must bend their knees before and after this action".

Haley's Comet

Basically an assisted MJ first move jump, with the lady bringing her feet up is listed in "Suggestions For Lifts And Throws" -- which does include general comments, re: crash mats, spotter, etc.

SpinDr.