My Mk2 leathers (albeit from a 45) do also mark slightly. I find that leather conditioner seems to sort it out. I suspect they are cheapo 'split leather', which is basically the arse-end bottom layer once decent leather is split from the full thickness. Then it is top-coated as normal, and 'looks' like good quality leather. You can tell as it is stiff as old boards in the Mk2's! It's the crap that DFS tend to use!