I purchased a MP60wes on 11/1/14, I installed it on 11/14/14 and it works perfectly fine. I want to go with MP40's instead. The mfg date is 6/17/13 and it comes with 3 different spacers. Asking $400 OBO. Please PM your number if you're interested. I'd also be willing to trade for 2 MP40wes.