Pat.
You know my car and what I do with it. I've been using A1RMs for about 2 years and that includes 2 superlaps, 3 wintons, 2 sandowns, bout 6 Deca's. Very little road use.
I've had 310mm RDA slotted and dimpled rotors too.
The rotors now have no slots left on them! I've been through 3 set's of A1RM's in that time.
I'm suprised you found them too hard on rotors because I picked them because they are cheap and easy on rotors. For the abuse I've given my car the rotors have lasted well.
I would have thought that A1RM's would have been a good choice for your car?
Make sure you flush with good fluid too as that is the source of most brake problems. I use RBF 600 motul.
Hope that helps.
BTW: who was the driver?