You really don’t understand P2. It could not be easier. First I would suggest you back up the original P2 card/s to a couple of different hard drives. I would recommend a RAID 1 HD.
You do not to change any settings to your system. Log and transfer your clips and FCP6 will automatically know what format you shot in. Do not change the format for the footage on the cards.
If your biggest concern is quality, then you have nothing to worry about. Quality will not change.
Go do a search on P2 workflow or pick one of a few DVD’s that are available and get yourself accustomed to the P2 workflow. It’s hard to screw things up with P2.
Steve Eisen
Eisen Video Productions
Board of Directors
Chicago Final Cut Pro Users Group