Assemble it with zero slop in the rigging. Use the appropriate size servo's, the ones recommended will work perfectly. Balance the surfaces as laid out by BMatthews. Fly the heck out of it. Lots of Sukhoi's are flying with no problems. Almost none have balanced surfaces. So that's added insurance.

Keep in mind you're buying an ARF so there is no guarantees every joint is glued, nor that properly selected wood was used. They are what they are.