Exactly. It's precisely because the differences are tiny, so tiny that some people think they may be in their head rather than reality, that there's any dispute about the effects of this sort of device at all (likewise cables, power leads, stands, magic disks, etc etc etc etc). If the differences were major they would be uncontroversial.

The bad grace with which zanash is treating Tones' entirely fair trial of this thing is illustrative of the lack of respect for other people's experience some were accusing sceptics of exhibiting earlier in the thread. Oh, the irony.

-- Ian