I have an opportunity to purchace B's w/ 30,X on them and Toda camgears... My question is what indications is just normal wear and tear for these cams w/ 30,X and what is not...Do I look at the lobe condition or ....? Camgears also...I know the bolts are important and I guess the teeth of them not being stripped anything else...? I just want the cams to last and the quality to be upheld....thanks.....