VMconvert speeds

We've had some interesting luck with VMconverter. Seems we get good speeds off the bat, but eventually the speeds crawl.

I'd be happy with 20MB/s, but we start around 17MB/s, then it drops down to 4MB/s, then 2MB/s.

It's actually really funny...the timer went up to 54 minutes off the bat with 17MB/s, and two hours later it's up to 1:10 and 4MB/s. Awesome.

The sunny side to all this is that, barring the 'semaphore' errors, it's worked no problem.

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