Moontans post brings up good points about the SR120 indoors. Others in their discussion groups state same. IMO you should most def get the DX6i instead of the 5i. Just way better as you advance.. the 6i is able to do things that most of us will prolly never use.. the 5i will leave you short. x-tra $30 is well worth it. Still say the mSR is the heli for him.