S-Works 2011 V's Expert 2013 Roubaix

fsd61b
fsd61b Posts: 109
edited May 2013 in Road buying advice
I have a choice between a new S Works 2011 Roubaix frame with an ultegra build and Ksyrium SR wheels for roughly the same cost as a new SL4 Expert Roubaix ,with mostly Ultegra build and stock wheels.
The choice is really between SL3 SW frame and good wheels OR the new SL4 Expert frame and get the wheels later. Don't know how much these frames differ .
Any experience of these?
Regards