The demo unit (C435) was a bit weird to get the right fit and do these phones justice whereas the 335 demo would often sound more impressive. to be honest, there was a leap of faith for my purchase based on my previous experience of their universals which all are high quality and good advice I've learnt from this board. I was getting a rough idea of the SS n felt these are closer to what I always look for in sound. The finished product did not disappoint me a bit.
If Suyama-san reads this board, he should consider to re-do these demo units.
Have alerted Claire from Jaben about the concerns. It is being looked into.