mattheus wrote:... and BPs are supposed to be a pleasant day out (or step toward 200+); so if you find 100 very easy, you have the option of stopping for longer, which you might want to spread over 2 café stops. I don't really see "too may cafes" as a pressing issue for AUK to address
Audax has always attracted a diverse range of riders for an equally diverse lot of reasons. A 100 can be anything from a family outing to a road clubs training ride and everything in between, all within the rules and all should be treated the same. The highlighted issue isn't the number of cafes, but the length of time a rider may have to spend there due to the queues. For someone against the bottom end of the time limit, that's time they don't have. For those club riders who want to get round as fast as they can and have no interest in any food stuff that isn't in a back pocket,that's time off the bike that might spoil the ride for them.
I'm not convinced it's much of an issue, it isn't something that's ever troubled me, I think organisers are aware that people have their own agenda and plan accordingly.