I should probably be more precise with my descriptions and contexts in this thread. I agree Federals mount rather easy, but what I mean by I don't like the way they stretch is how fat they run.
Here are my 255/35 Federal RSRs on a 18x10 from a few years ago. The sidewall was quite rounded of course. Ideally, I would've had to undersize the tire.
![](http://grandmighty.com/wp-content/uploads/2012/09/1.jpg)