It is a technical impossibility not to have 'wind up' even if all 6 tyres are the same size and pressure, as soon as you take a corner all six wheels are describing different radius circles. The differential takes care of side to side differences but the wheels on each side are geared together directly with no compensation for differing speeds other than tyre slip.
You could claim that you had no adverse or damaging effects from 'wind up' but it was certainly there.
Scammell Pioneers and Explorers, Leyland Martians, mk1 Militants, mk1/2 Antars, Diamond Ts and many other older double drive trucks rely on tyre slip to prevent the final drives destroying themselves.