A lot has been written regarding break in for Tesla. Personally I find they require at least 96 hours before they start to open up and smooth out. After that it's a 300 hour voyage of discovery.
Here's a link to the subject:
http://forum.audiogon.com/cgi-bin/fr.pl?ddgtl&1174928602&read&keyw&zztesla+apex
Here's a link to the subject:
http://forum.audiogon.com/cgi-bin/fr.pl?ddgtl&1174928602&read&keyw&zztesla+apex