Thanks for keeping this one alive, I always like to hear I am not the only person with a problem.
Black09, I wish I could tell you if the fork could cause the vibration we feel but I have no idea. I hope the dealership can get you some info, I would really like to get this problem addressed. I have just been logging the times it happens in a little notebook. I have addressed the issue with Subaru of America so much already but have never been able to duplicate it for a tech which is extremely frustrating.
I haven't had any trouble throughout the later spring and summer, but the 50 and below nights are around the corner, and that is when I have the problem happen most often. Cooler weather while shifting aggressively at higher rpms. Subaru will start to hear from me again soon I am sure, just wish something would be discovered...I am tired of calling them to discuss it since they won't do anything without their people actually duplicating the issue.
Good luck at the dealership. Please let me know what they say.