Old RJX (Stock Blades) cracked while we were testing the cam mount. So I had to order these new CF 710mm blades from Flying 3D Cn. These blades fit right and make awesome sound when flying but then we realized right after the take off that KDS 700E Stock motor is unable to bear the load of these heavy nice rigid blades. Well we went for some soft 3D then, however now either I am gonna sell the KDS 700E or gonna get some serious upgrades for this helicopter. Comments and feedback welcome at [email protected] , [email protected] or [email protected] Don't forget to visit , and Subscribe to