Hi, everyone. I am thinking about investing in a durometer in an effort to be somewhat analytical about assessing my tires. I intend to try to track the degradation of the tires and try to predict when they are done before I find myself out on the track with crappy traction. Questions:

*Will this work? Will a durometer be sensitive enough to detect the changes in my tires over several sessions of use?

I know the rating will vary by tire manufacturer and by tire compound, but is there are target reading for a "good" tire?

*Is there a rule of thumb regarding what the readings will be when the tires are done being useful?

*Do I need to buy a fancy digital guage or can I just use a guage with a dial?

TIA!

Dave