I talked with my sup and he seems totally cool with taking me out and giving me a few test runs before I even take the road test. If you're headed for a road test, you should tdo the same. Get used to it, nice and comfortable so that when you do take it out, it'll be a breeze.
Bid on different positions, if available. If you fail it while trying to become a ft driver, you can still try again if the position is now an air driver bid....make sense?