In article , Glenn Richards wrote:
And if it does make a perceptible difference, however tiny, that means
£50 profit each time...
And when it is discovered that it makes no difference whatsoever...?

*If*, not when. I've yet to start experimenting on these things...
[...]
I've yet to do any thorough testing. When I do, I'm
sure I'll post the results here. It'll be entertaining, if nothing else
- if there isn't a difference I'll have half of you nodding in agreement
and the other half calling me "cloth-eared", if there is a difference
I'll have half of you nodding in agreement and the other half saying
"you must have imagined it".

The best way to avoid this uncertainty is to ensure the tests are carried
out with proper scientific rigour in front of impartial witnesses, and that
full details of the test procedure are published so that anyone so inclined
can check for sources of errors that you may have missed, or even repeat the
tests. Only in these circumstances could there be no arguing with the
results. I look forward to seeing your results.

Rod.