Damn!!!   

  The power loss issue happened again last night whilst I was pushing the car a bit.  Twice!!!  

It's totally weird - I'm not sure if something like the DV is failing or its something else...  

Appreciate any ideas of what I can check, or get the dealers to check whilst in for servicing tomorrow?
P.S.  Should I just replace the DV with the Forge one to eliminate the OEM DV from the equation?