I have to agree with Dirk. If you are handy with small tools, can follow videos, and take your time, you should not have any problems with the stage 2 mod. The "old" version took a little more work, but with the new "holder" design makes it much less of a job. My distance increased BIG when I added mine. With both controller and quad done, I have made 10,000 feet away and still had FPV and control. Could have gone more, but chickened out. Others have done better.moswissa said:wow 7200?! thats very impressive. I'm pulling the trigger on the RE700 for sure. that supposedly doubles the wifi range. is the stage 2 you have the pilots side? how was the installation? thank