Which CD Player? Talk Electronics or Shigaraki?

The 47 Labs transports vary widely from one unit to another.I know a digital designer who was using one to build his gear.He brought in several others,of the same model.Only one had the magic,he is frustrated.Even contacted 47 Labs with the serial number,to see if something had changed-no help.I was told that the units sound good,when they work.Maybe the open architecture.CES had many on static display last year ???