Ulter, MS, myself, and many others have been involved in testing Anavar by brand and source. If you would like to see what we have so far:
http://www.elitefitness.com/forum/showthread.php?s=&threadid=149825
http://www.elitefitness.com/forum/showthread.php?s=&threadid=169880
http://www.elitefitness.com/forum/showthread.php?s=&threadid=172176
http://www.elitefitness.com/forum/showthread.php?s=&threadid=167738
http://www.elitefitness.com/forum/showthread.php?s=&threadid=149825
http://www.elitefitness.com/forum/showthread.php?s=&threadid=169880
http://www.elitefitness.com/forum/showthread.php?s=&threadid=172176
http://www.elitefitness.com/forum/showthread.php?s=&threadid=167738