Ok maybe you see more supras than me!! I completely agree with the other faults that can cause the seal to leak.
What I am saying is after working on these cars for over 8 years 99% of the time the leaks have been down to incorrectly fitted seals.
I have had cars come in that have been worked on at other garages had a new seal and been leaking. I fit a new seal and its fine, no leaks.
I have had 5 of these in the last year done by a well know tuners, 2 within the last 2 months
I see ALOT of cars and im going by my time on them over the years.
If you look back at your thread you are talking about you will see me involved agreeing with you as I sufferd the same problem as you first hand on my own car.
Please dont tell me you know different when I work on these cars eveyday
This is why I dont get involved to much in these kind of threads.
Basically my best advise would be DOUBLE check your seal fitting first, I made a tool to fit the seal correctly, if its in 1mm to far or not sraight it WILL cause an leak.
It is possible its a worn pump but trust me not very often