Your PFC 08's should easily last more than 3 days. I have 20 days on my 06's, and the fronts are now worn down (rears are still have left!). Don't sweat the SS lines, I'd be more concerned with fresh hi temp brake fluids.
Recaro | AST | Vorshlag | Quaife | Stoptech | Volks | Autosolutions | BMW Performance
Click here for my track videos