On 3/23/2022 at 4:53 PM, TmxDiver said:
Okay, so I had the right function, just not the right nomenclature for "BB." Haha.
I don't own a Z330, but I took a look at the manual and it looks like they might have put in a "simple switch, for example" to control the function instead of the BB:
Those bastards!
- brett
The problem with BB is, that they pop out upon unintentionally touching them slightly from this "simple switch - push and lock" position, when one adjusts other controls, e.g. intensity, especially when wearing gloves, but also w/o gloves. It may depend on the shape of your hands - I have rather crude hands with bold but short fingers (called "sausage fingers" here in Austria) and it happens frequently to me, while my wife never complained about the BBs so far... 
I have read here about people (with Z240 that seem to have similar problem), who use superglue to arrest the BBs, because the BBs drive them crazy. I realized immediately what Alex meant with the abbreviation BB, as this is indeed the Achilles heel of the Z330s and the problem recurs again and again, even after experience with the strobes..
We have three Z330 and they are very fine strobes, with the exception of the BBs, that are annoying - as Alex says part of the photos are ruined, because one of the strobes jumped out from manual and gives not enough intensity. Sometimes it is too late to rearrest the failing BB and make the photo again...
Wolfgang
P.S.: Since this is a tread about which strobe to buy, I want to add that I would not go for Sea&Sea, after a lot of bad experience with four YS-D2 (evidence is accumulating about the new YS-D3 that they are also not reliable). Probably I would go again for Z330 as basic strobes, embracing the impractical BBs, but Seacam or Retra may be an alternative...