Am I on the right track ?

[prot]

Because I'm backing up to the external USB, for all intent and purposes as a network drive, does it make sense to;

1. Keep a sparse Clean image which basically is Tiger with all updates (currently available) and my little tweaks here and there.

2. Then following the instructions from the FAQ How do I update an image? create a seperate sparse image, Weekly, and use this for my rolling updates ?

If I'm missing the point completely, just yell at me.