If you plan for Sonodyne Sonus FS, then better you stick to Sonus C2501 center channel speaker for uniformity across L C R... BTW i thought u were looking for a BS in 10K range...
I have not yet decided which one [centre] to go for. My budget is: 10K for centre and around 20-25K for FS later.
Now in my city [Kolkata] demo of both centre and FS is possible for Sonodyne. But I am not getting a scope to demo the wharfedale centre here. I have to check out whether demo for magnat centre is available or not. But I also have to keep in mind that I cannot stretch my budget for FS much.