This is my theory as well. I was fortunate to get 2-300 miles on the rear in good weather on nice flowing twisty roads. The next 100 or so were on wet roads (heading towards Chaves, Portugal, on a real nice twisty road) and it was not a very pleasant experiance. Very little feeback and that riding on ice feeling. Over the next few hundred dry miles I really switched back to riding as if on a new tyre again and gradually built up the lean angle once more. It took at least 500 miles before I was happy with it.
Its got 1500 miles on it as of today, and Im happy to lean it to the edges, just like the made in Germany version.
Thanks for the advice