around 300 runs depending on where its at at the end of a season on aluminum. Again just my opinion. Which used to be about 3-4 years/seasons when we used to race every weekend. I guess that could be every year for some.

How often should the steel rod be changed, in those conditions, would be the one I don't have a good answer for. They will need changed at some point also. Might be best to use Scat/Eagle and change those every 300.