Yeah slow and steady is right on the clears. It is a world's different already from what you got out of the box.
As for the butt plate flare, I'd say that as long as the kidney plate lines up and is in proportion it looks good. What you don't want is the kidney and mid-section in with the butt plate not doing the same. That is a common thing I see with TK/TX's. Proportionally it is what it is about.