RE: mds engines
No prob Luke.
To be fair, I should say that the MDS 38 was only suspected of having broken its crank -- I didn't actually get to see the bits. There was an almighty bang & debris was observed to fly off the front of the model. About 2 yrs later, a friend had a very similar noisy failure with an identical MDS 38 & in his case it was a broken crank, so I assume that is what happened to mine. What ever it was, it was violent & instantaneous.