Hello,
Yes, I usd the slotted versions on my 98 EL Falcon, and I got very good results! I live in South Africa, in a region where it is fairly hot in summer, approx 30-36 deg Celsuis, and no problems.
They tend to be a bit noisy on very hard braking, because of the pad rubbing over the grooves, but rather that than shuddering/no stopping.
See ya,
Phillip