Kevin writes -"I then got one, and *much preferred* the results after I had calibrated. Better imaging between any 2 speakers, better panning of effects between speakers etc."

I have 4 surround speakers in a symetrical room. The only 2 settings to calculate by ear or meter is L/R surround level and sub level.

If my surrounds and sub are 'wrong' (not that there actually is a 'wrong') there's now way I'm off more than slightly (+/-Xdb).

Based on the wide array of methods diff. people here use with their SPL meters (which MUST result in just as large +/- variations as 'by ear'), how do I choose ONE method and know that the final result is 'more correct' than any other?

I've been asking for someone to tell me how over and over again.
None of the people who are sick of me have been able to answer this, and after giving everyone more than plenty of time I'm sure no one here is able to.

My search for a method to more accuratly calibrate my system continues. It has NOT been found here.

I hope some of you bother to 'think' about the details of why you do a lot of the stuff you do. This 'lack of thought'is what leads to all the wacky 'snake oil' crackpot audioproducts that suckers buy because they don't look deeper in to 'how' it works... or doesn't.
Open your minds.