Jeff from Hodges Subaru called me about a half an hour ago. That's promising to begin with - I was going to give them until 6 before I started calling.
Anyway, they already have the car up on a lift. The tech working on my SVX owns and drives an SVX himself, apparently. This tech claims to have had exactly the same problem with his car. His recommendation is to drain the tranny, drop the pan and clean the filters out. Then flush.
Flushes scared me, so I had Jeff explain their process to me thoroughly. It sounds no more destructive than the transmission's normal operation, so I am reassured. The tech also claims that he has had exactly the same problem that I am with his car, and since fulshing he's driven his for two years with no problem.
If this is all I need, I'll be effing thrilled. So thrilled, I almost didn't censor that.
But I'm also keeping my feet on the ground. Lou at Ann Arbor Subaru said that this was not a solution to my problem. But then he didn't actually see the car.
More info as it becomes available...