I must say that I own a few Tikkas (all of which are the WH models, not the T3s), and I have never had a problem with the stock binding against the barrel. Sounds like a fluke of sorts. Still, I'm glad you have it free floating now - that's one reason, in part, why the gun is so accurate.
As for the scopes, if you go to the "optics" section of this site, you will see that the Elite 4200 is one of our favorites.
Zachary