2wd Tractors and loose soil!

Planted with AOG this year for the first time using a JD 4555 2wd and a JD 7200 12 row planter. Does anyone else who seeds or uses a 2wd tractor have trouble in loose soil keeping a straight line? Our 4wd holds dead straight but I feel like our 2wd gets pulled around in the loose soil by the planter. Another farmer near us has the same setup but uses Starfire with the same if not worse results. What’s everyone else experience?

Stabilizing discs as on the thyregod trv rowcultivator.