And by anyway, of course, I mean anyone.
Not a Champion Speller.
I also wanted to add that, my views are purely from a customer service stand-point. For those of you that string your own rackets: If the playability is the same to you, by all means, string however you want. String the crosses first before the mains if it makes you happy! From a customer service stand-point, I can't honestly re-string someone racket in that way because what I am providing for them is not what they reasonably expect. The feel will be different from the fresh string job they received prior. It just isn't the same.
Again, if you don't notice the difference, or it allowed you to discover a better feeling tension, great. I just wouldn't ever string my customers rackets in that way.