*Learning how to skilfully move with the osmo and get smoother shots is tough, but im sure with practice that up and down (sudtle but there...)movement would disappear in my future videos. Camera settings: LOG, Auto, WB 4000 post production: done on Premeire Elements 14.1
DJI VIDEO OPENER FOOTAGE CAN BE FOUND HERE PHANTOMPILOTS
Even I have experienced using classic stabilizer 'Steadicam', and adapt a walking technique learned from using steadicam, it is not quite easy to eliminate that up and down.
The only way to 'totally eliminate' those up and down movement is using a Smartwheel (a.k.a Hoverboard) or skateboard or similar one.