I have four TeraStation data blades that are currently set to Raid 61. Each has 4 disk drives (3TB each). They are empty/new. I have two older data blades - again, 4 disk drives (3TB each). One data blade is used for storage, the other is for backup. I need to transfer the data from the two older blades to the four new data blades. Is there any significant benefit from changing the new blades from Raid 61 to Raid 10 BEFORE transferring data from old to new?