I finally got the time to install the ledocd I had received from Comet Pinball. This was really a much needed enhancement on my Tron and Creature.
Now I do have a gripe though: it would really really help if there was a reseller in Europe. I paid $50 in shipping and $50 in tax for just two units. That put one ledocd board just short of $200, damn expensive if you want to equip several machines.
Alternative is afterglow, but that only works for WPC machines, so if you have a Stern you have no option (plus it's not exactly Plug and Play).