User blog:Kurtisayr/Rathalos Ruby help

I've had lots of problems trying to get a "Rathalos ruby", I have even killed a silver los 30 times or something....and what happens? Still no frikin' ruby. Any ideas to help me get one?? I know one idea, which is to get the blue guild armor...so i can carve the tail twice....but thats the only idea i've got!