Exactly how we attempted it in the A4B...
IIRC , following certain maintenance procedures (possibly engine changes or flight control repairs), maintenance test flights were required..."booming" the a/c was an optional item on the check list...
Up to FL410...five minutes at MRT (LOL)...0 g maneuver (absolute minimum induced drag) into the vertical...initiate pullout at 20,000' AGL...
Got a little "nose tuck" approaching M 1.0...required a
lot of back pressure on the stick to get the nose coming up...

! Did it ~4 or 5 times...never failed to post M1.0 + 1 RCH...clean birds, I guess!!
BZB...A4s...how's my memory? That sound about right?