Not to distract from the thread . . . but there does appear to have been some scholarly consideration of the etymology of the term. See, for example,
http://www.phrases.org.uk/meanings/dog's%20bollocks.html
Some aspect of that etymology may be suitable for emblemation in a token of appreciation that the British folks may have on hand next spring . . . hmmm, I don't think that would be difficult to arrange . . .
Seriously, though, that is an interesting and important point you make about store-and-release. As a one-shot demonstration it is impressive . . . but also misleading in the sense of combat usage under pressure.
Overall the London seminar seems like it was a great experience, following closely on the successful Netherlands gig. Good stuff.