Two things stand out, the AT pan was full of metal shavings this time, a lot more on the magnets than normal and flakes that are non-magnetic as well. The other thing he explained to me is as follows. Get as much of the oil out of the TQCV as possible. Hold it horizontally and look into the business end. Shake it latterally, if a shim appears the TQCV is toast. Not to mention that now that it is drained, I can feel that something is loose inside. Apparently there is a needle bearing in there that fails and takes the rest with it. Mine was making a bad grinding/howling noise that temporarily disappeared after changed the oil.

The slippage must have been from the TQCV and not the AT, the AT innards look perfect but I took it apart to make sure that no shavings are lodged in the clutch packs or in the planetary gears. Also there seemed to be some sludge under the valve body but hard to tell as there is so much oil when you take it off.

And anyway, now that it is out of the car I want to replace the "A/B" radial bearing and freshen the seals and o-rings, etc. No point waiting for the AT to develop a problem (8 yrs old now) and then going through the removal again as I find it not much fun to be horizontal under the car and wrenching it.