Went through the same issues with Madrigal regarding repairs for my ML #333 and #37. The worst thing was that all I needed was a simple recalibration for the transport, and ML had issued a technical bulletin earlier to all its dealers on how to recalibrate the transport mechanism, by pushing a few buttons on the front panel to initiate the process. Madrigal charged me that $1800 + shipping for the repair (they replaced the whole mechanism). A friend found the bulletin online and sent to me like a year afterwards.
I still have the #36, a Sonic Frontier SFD2 Mk II, and a Benchmark USB. House is under remodel, and all components are in storage. But will be putting the 3 against each other in the system in early spring. Original intent with the Benchmark USB was to introduce music server into the system now that I have all my CDs ripped to a home server.
FrankC