I am not going to tell anyone how to drive their car but I will say that 5000 plus rpm launches like I typically do are most likely going to shorten the life of many parts in the drivetrain. It should cause less wear than slipping the clutch will but there is a much greater chance of parts breaking. I am running a stock clutch and pressure plate in my car (60,000 miles) and with the drag radials and 5000 rpm launches I get no clutch slip. If you are going to slip the clutch you might as well spin the tires because either way you are going to have poor 60' times and tires are much easier to replace than your clutch.
