Yeah man, feel free to post updates on your experiences, too. The more knowledge available to the community, the stronger the community becomes.
Looks like you're staying with Lightning/Cold, so your experiences with that spec will be helpful to any newer players interested in trying Feedback Sorc.
Regarding some of your skill choices, I personally don't see a reason to smax Snow Queen or Warp Armor. The difference between 26 and 27 points in Warp Armor is zero extra Avoid and only a tiny increase in TCD. With Snow Queen, you stop gaining Life after 25 points, and you can get extra Defense from many other sources, if you need it.
I also think a point into Symbol of Esu is still a good idea for those rare occasions you need an immediate instaheal, but for whatever reason, Antimass is on CD. Even with 1.3 second CD Antimass, a simple moon cookie can be the difference between life and death.