Behe - how could I forget that? Seems I am VERY close to extremely humiliatingly having to admit I just MIGHT be wrong, however terrible that is! But just a question, although I have never encountered the situation myself, although I was an elder for a quarter of a century: If a youngster or someone else has completed the questions and is ready for baptism and wants to be baptised at the international convention, is that OK? Then the number of people baptised would be highter in the pre-75 period. Perhaps one was a bit more relaxed then, also, as to the baptism-candidates. I remember in my own congregation, many more attended the questions-meetings than were actually baptised later on. And people did not have the most accurate knowledge in the world, but still were baptised. More strict now.
But - until I can find some more devastating arguments for you - you have an ad hoc victory ........ shame on you!