Just so you know, I drained out the fluid to do a change with some fresh UDT2, drained, replaced the filter - went to take the screen out and still more fluid came pouring out. Even after I left the drain plug out for a good 20 mins.
So put something under the screen when you pop it out.
I'm at 50 hours. Screen wasnt bad, but did have some metal shavings on it (always nice to see *shudder*)
Nice and clean now and with the trans fluid swap the HST is a bit quieter