Measuring Speaker Distance

A search of the forums will show that you aren't the first to have had this question. Here's my post on the matter:
http://forum.audiogon.com/cgi-bin/fr.pl_u?cspkr&1284815594&&&&&/When-someone-says-his-speakers-are-
Regards,
Howard

Tried to go to the thread but says it was deleted

With Vandersteens, its from the front of the cabinet...others may be different. I advise also to use a laser and mark the back wall with an X or dot for each of the speakers and shim one of them so that the dots superimpose on each other.

From the center of the base of the woofer cone (where applicable).