I, too, have a Wadia 8, which I purchased soon after that transport became available as the companion piece to my Wadia 2000 DDC. Recently, my Wadia 8 became "temperamental", albeit in a different way. While the tray did open and close, the CD would often not be read until I opened and closed the tray three or more times. Once that first CD was read, however, this problem would disappear the entire time I would be playing CDs. Unfortunately, a second problem arose -- skipping within a track. This problem has made the Wadia 8 unusable. My solution --- currently in process -- is to send the unit to George Meyer AV in Los Angeles. They bought Wadia's inventory when that company shut down a couple of years ago, so they can repair most Wadia models still.
Personally, I am looking to purchase a Wadia 30 or Wadia 40. Stupidly, I discarded mine years ago and am considering purchase of a new CD/SACD transport. However, I cannot use any of the models I am looking at because none of them has an ST optical output, and Wadia 2000 only has one input -- which also is an ST optical. Might you happen to have one that you are not using? I'd be happy to purchase it from you.