I don't think so; I started using mine when I bought my LR new nearly 4 years ago and it has been in religious use ever since, i.e. always used wherever and whenever the vehicle is parked up, even if its just for a couple of minutes. There is no evidence of damage/marking on the steering wheel and/or leather caused by the lock (can't say the same for the lock where it just gets slung in the back as I take it off!). The fit on the T6 MSFW is a lot easier so I think the potential for damage is even less, though if you carelessly slam it around anywhere, the weight of it could do some serious damage!!@Davenjo ... yes, I read that review. That's what started me down this route as well. Appreciate you letting me know the Pro fits properly and as it should. Do you think it's the weight over time on the wheel that could cause damage/marks with the way these devices sit ??