Personally, I agree with Pete J's interpretation. But my personal take on the issue does not matter, unless it is a contest for which I am the judging authority.
There have been a couple of references to "IPMS" but IPMS chapters do not interpret and apply the IPMS rules uniformly, universally, or consistently. Different chapters do different things. Sometimes the same chapter can interpret/apply the same rules differently, depending on who is 'head judge' for a specific event.
HOWEVER, the bottom line is just what I've said before ~~~ IT DEPENDS ON THE SPECIFIC, INDIVIDUAL CONTEST.
THE ONLY WAY TO BE CERTAIN AND TO BE SAFE IS TO FIND OUT HOW IT WOULD BE INTERPRETED AND APPLIED BY THE JUDGING AUTHORITY OF THE SPECIFIC CONTEST.
What might be acceptable at one event may be prohibited at another, even if both are promoted by the same entity.