Shifting gears a bit to the actual migration... I saved on a huge amount of down time during such a migration by restoring the full backups from the night before...

Ask the ring knocker if he likes pork chops and then feed him your results. 

Lordy, I hate such "experts".  As always, one good test is worth a...

Lynn's method will not provide leading zeros for times < 10, which you seem to indicate is required in your original post.  The following formula will.