When I was at the local dealership looking at a 2014 ST SM5, I noticed that the clutch pull was very stiff. Is this normal, or does it have a vacuum assisted clutch than would be noticeably lighter in pull with the engine running? (I didn't think to ask the question at the time.) I have seen a thread for the F3 SM where they've had to retrofit a kit to make the clutch pull lighter - if needed, is this kit also available for the ST?