Update!: Roasted the tranny. That's pretty much it! Really not surprised or upset, it's an inevitability with a near-stock auto. Started to slip in 1st gear, flaring a bit on the 1-2 shift, then I could hear the pump whine (usually indicating restricted flow)... Took it into work to have a look, almost didn't make it. Did NOT want to shift out of 1st. No line pressure, as I tried to pump out some fluid by way of removing the cooler line. The fluid flow was not very motivated to say the least...
Dropped the pan, filter was pretty much clogged. Magnets clean for the most part. Small chunks of black burnt fiber in the filter...clutch packs, yay!
Cleaned the filter out, filled with fresh Type IV that I removed, works much better. Pump whine is gone, shifts are back to normal, but I will not be driving spiritedly (or at all) for that matter for the next little bit until I upgrade the trans. Intentions were always there to purchase a built trans, I was just going to do that later this Winter. We'll see where that goes. So I guess I'm on the hunt for a built A340E!