Welcome to Just Commodores, a site specifically designed for all people who share the same passion as yourself.
I don't know where you heard that its good to put more than sl's on your standard shocks, but if you want them to get damaged in a eariler stage and produce less life then i hope your up for paying more in repairs than if you were to just buy aftermarket shocks (which are reasonably affordable).
You might feel that the driving is fine but, as others can't feel how you feel when your in pain sometimes, exaclty the same way you can't feel how the car is feeling when you are pressuring it...