different tires on AWD is okay????

[SSSVX]

well, this is the story after mandi's birthday.....
the link is as:
http://www.subaru-svx.net/forum/show...2924#post22924

i took my SVX to local dealer. i asked and showed them my car's tire situations(as described previously). surprisngly, the man told me it'll be fine. as long as all four tires are the same size it'll be fine. he asked, and i replied him that i didn't hear any binding during any turns. he told me that'll be okay.

i've 3 bridgestone RE95 and 1 yoko AVID4. YOOO, different tread life, different brands but same size. they're all 225/50/16 91V.

well, their answers made me not as worry as previously....but, still.... are their answers okay?