@wizastudios
I believe we have optimized our site as well as we can possibly optimize it without extensive development time cleaning up the way the code has been organized.
We are using this combo: W3T Cache, CloudFlare and MaxCDN. It is a huge hassle to push everything carefully through the CDN each time we make a change on the site.
It we had it to do all over again, this definitely would not be our theme of choice.
I hope this helps.
Kerry