Fundamentally speaking oil process properly applied will run faster than graphite consistently much longer. Graphite techniques properly utilized will run quick with slowing taking place after multiple runs on a track, upwards of 6 to 10 heats before dramatic reductions of speed occur.
Rolling repeatedly on the gentle slope of a tuning board of a max length of 8' should allow you approximately 30 "tunes" before running out of a properly installed and prepped graphite car. In my opinion checking steer on a tuning board is mainly useful to set a base steer to safely Start the tuning process on a track...in order to test run from the base steering adjustment and view the cars performance in various areas such as hole shot, transition, and flat through finish making adjustments in order to maximize speed...for a RACe. Lightening boys techniques are use to verify drill and wheel migration. Both Very important for a frames build out and verification in order to not waste time on a poorly drilled frame. My view is that you are relieing on two basic build out principles to conclude you are "tuning" your cars which in fact you are just checking frame dynamics and establishing a base steer to not jump track. Please dont misunderstand me. If that is all you have available to build and race, we do with what we have, so RACe. Dont be afraid to verify, verify, verify and then add some more graphite. Tap. Begin again. Dont forget to add some graphite before, Tap, check-in......Good luck and hopefully we will see you on the hill soon.