Deandec- I did all the test you described except for the auto adjustment test. I had to quit because of darkness.
Results - virtually no leak down . I checked from front to back listening and looking for a air leak and none was found. When I got back to the cockpit to restart the engine the gages had only a small amount of movement. The dc gages appeared to go back to near their original position with maybe a small amount of movement.(these gages are measured 0-65-150 so it is hard to measure the exact bleed down. I could see no static leak down at all.
Today was DR's office visit so had to put the auto adjustment off until tomorrow's pm.
Sorry I did not get back to you sooner but things have been hectic.
Bunpus4