Hello again
There is some misunderstanding indeed.
I wouldn't advise you to treat Hyper-V VMs as Virtual PC VMs! Perhaps the file formats are similar but this is not a supported scenario. OTOH converting them as powered off Hyper-V VMs will also access their files directly (by the converter agent installed on hyper-v server). Thus the cloning time should be the same as in third party VMs and probably faster than P2V.
Regards,
Plamen