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[wtknght1]

Sounds like you just got a bad one to me. I can normally get 2 weekends out of a set of front rotors if I'm doing DE stuff or maybe a race and then a DE event. Running them on the street really doesn't do much to hurt them...it's just the ultra high heat from racing that will crack them. You should be able to get at least 3 weekends on the rear rotors.

Always have spares handy though!!!

I am using the Carbotech 11s F and 10s R so these things generate some serious heat.

You can also get those rotors from Rockauto.com and have them delivered to your door for less than $100 per set.