Remodeling an InfoCube in BW 3.5

Hallo experts!

What is the best way to remodel dimensions of an productive InfoCube?

What I know:

- copy InfoCube A to InfoCube B

- generate an exportDataSource on A

- load data in B from A

- delete data in A

- remodel

- generate an exportDataSource on B

- load data in A from B

Is this the best way? Any other Ideas? If I have a very large InfoCube, is it the best way to have an InfoCube as B? Wouldn't be an ODS-Object better because It maybe is faster to write in and read from a flat table?

Is it a problem if the InfoCube is compressed?

Anything else I should know?

Best Regards,

Peter