"Hi Michael,

Sorry, I'm not sure how to do what you're requesting.

Also, I might not be understanding what you're asking - but if its trying to convert your Production data directly against existing tables, rather than running off a copy (or copying them elsewhere as part of the process) then this sounds rather risky. What happens if the conversion doesn't complete fully, or there is some side-effect, which makes your data unusable in its current form? You might be opening yourself up for a world of hurt. And Bob generally has good reasons to say things :)

Best of luck,
James"