Expand replicated volume

Hello,

I have two SCv3000 with a Volume replicated from SAN A to SAN B synchronously (don't think it matters but well, it's said :-)). 

I need to expand this Volume and can't find the best practice for this. 

I think I should do as follows : 

1. Pause the replication
2. Expand target Volume
3. Expand source Volume
4. Resume replication

What do you think about these steps ? Should it work ? Or do you know a better way ?

Any help would be appreciated !

JK