Looking at getting my daughter a 600 pro found 12 and 13 carry overs the 12 is a 1000 cheaper. I have a 13 seat to put on it and will put 13 running boards on the 12 plus I kind of like the chain case for peace of mind. Or is there something I'm missing and just go with the 13 instead. I know the 12 is heavier but still lighter than her edge she has now. Give me your .02