I tried "shooting the 60p mov setting in camera and then conforming to 24p in post" according to advice of Chistian Hubbard.
On shooting I had changed tripod from DAIWA VT551 to Manfrotto 701HDV 755CX3 and Lens O.I.S. were off.
For conforming I placed mov60p in 24p project(timeline) by FCPX.
Is this much better quality than native mov24p?
GH3 Pana12-35mmF2.8 GENUS ND Fader Filter
MOV60p IPB to 24p, SS1/50, Aperture Open-F5.6, ISO200, WB Outdoors under a clear sky, NAT(-2,0,-2,-5), FCPX