Its probably you were just getting away with applying too much lock on cornering before, and the diff is now managing to convert some of your "requested" input into cornering input.
With the open diff under power the line would never really tighten so your possible "error" before would never have been noticed.
Don't worry we all do it
When you watch a race driver drive a FWD car fast (not showy) they apply minimal steering inputs.
Originally Posted by Caldo Bollente
On the occasion I did notice on less wet probably tighter bends where you could tell the diff was doing its job that there was kind of oversteer, not the back stepping out, but finding myself having to purposely steer back straight again after the corner which is a new one to me, would that be defined as torque steer or the opposite of?