I read this entire thread and I am mildly disappointed that he stopped posting to it, that was quality entertainment...
To finish my commentary from years ago, I did subsequently get an admission from mechanics and a techie from one of the chain companies that it was standard practice for nearly all accessory companies to 'cheat' on the sprocket/chain length so that approximately one half of the adjustment value was gone, as noticed by the chain being at half its adjustment range. I didn't post it because this was in 2015 and I just forgot. This is easily verified by anyone upon replacing your chain with after-market stock. The motive:greed. They get away with it despite deceptive advertising that implies a 'stock' replacement. Of course it is an issue for the Federal Trade Commission. So if you want all the length you deserve you have no choice but to pay for the motorcycle manufacturer's high replacement cost for the original chain and sprockets. It may well be worth it. As reported, my first chain/sprockets lasted to 33,000, while all my subsequent after-market ones have not gone over 20,000. How they do it still mystifies me and I found no answer to my question. I can only suppose it is an incremental increase in link length or sprocket size that could only be discovered by a micrometer. I thank everyone for their considered opinion on this important consumer issue in the previous comments.