BRM,
As a dedicated D Sachs fanboy (who has heaped lots of praise on Don's gear on AC and elsewhere), I'm delighted and gratified that Don's Model 2 is performing so well for you. I bought the newest rendition of his Model 2 this year, and just couldn't bring myself to sell my 5-yr-old model, so it is in my audio system in Taiwan.
Enjoy!
Michael