Originally Posted by hktrdr
, about 10 hours before your post
Well then you're not correct, there is no way the SL is stiffer the the MC. The MC High back is a solid piece where the SL is not. In addition to that, the MC high back is made out of carbon fiber which is rigid and responsive, the SL has a carved out asymmetrical polymer type substance high back which is where that torsional flex comes from. As you can see they are completely opposite in terms of flexibility. Until this year when the charger beats out everything in terms of stiffness the SL's were a step under the MC Metafuse. Google reviews of the MC and they will tell you the same thing I am.
Like my original post said, I cant comment on the other parts of their line, so you may be right about those. But until the charger was redone this year the MC was top then came the SL.