I just made my appointment for my 20 hour service. They guy said they check everything; top end, bottom end, the belt and chasis. I noticed mine was slipping and read somewhere in here the belt will loosen during break in.
Did you ever get your first service done, If so did they tighten belt? Mine has been in shop for week and half and they say they dont have tools to tighten belt so they ordered them and they are on backorder!!!