The Kobuki base by itself won't drift, so it is sensible which the tilted inertia causes the drift. Needless to say I am able to hack my URDF with a weightless superstructure, but I desired to deal with this in a far more sensible way. I tried all I can https://www.uk-exhibitionstands.co.uk/product/makitso-ca900-counter-transport-case/