Effect of tweaking speaker placement

[joelha]

I've been given advice about placing my speakers at equal distances from the back wall to within a fraction of an inch.

Presumably, the same would apply to placing speakers an equal distance from the listener, again each speaker matching to within a fraction of an inch.

At the same time, as Audiolense is designed to compensate for minor speaker placement discrepancies, among other room related issues, using a properly designed filter, how much does such precise speaker placement matter?

I've no axe to grind here. I'm completely open to any informed opinions I receive.

Thanks in advance for your input.

Joel