Hi Chris Johnson,
I understand your concern. Good news is no there isn't anything else you need to be concerned with, though if it were me I'd also change the name of the test after the copy & paste so I can remember which one is which, especially looking at it in Test View or Test List Editor.
Other good news is that we're about to release SP1 of the tool. It will be published any day now. It includes many fixes and a few new features for Silverlight recording and playback.
the Telerik team
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