Personally, I would change the rear pads out to the exact same pad series or at least similar spec/compound as the fronts if you are on the street mostly. I have found that works good for me.
For those doing plenty of road racing it is not uncommon to have a different compound up front to battle over/understeer in aggressive braking and cornering situations.
Not to derail your thread, do you mind saying how you like the Lund tune?
'14 California Special convertible