Got this response from sonnax tech:
"From your video it’s hard to establish if the leak is coming from the servo cover (I replied it def was leaking from the servo cover). You can check it relatively easily by running it on lift while power braking it, shifting it from manual 1st to manual 2nd with someone watching underneath. I would assure it’s up to operating temp and then you can use power braking to simulate load. In our experience when 2004R sprays ATF out like that is usually a pump issue. I would be interested in looking at pressures on this under max or heavy throttle. It’s possible the pump may be cavitating or losing prime under high/heavy throttle."
Ill rig up a test gauge today if possible and get some numbers - got a busy day at the shop tho.. this is the 2nd pump that did this, i swapped it out at last build for a 2nd gen one (without the grooves in front seal - but i cut grooves like the late style on the lathe) - everything else is stock OEM 7 vane with the drain back hole mod and spring/tv/line pressure upgrades from sonnax-