Well when I got my license after you were already old they were not even teaching us about how to drive a manual and what to do. It was just put it in park then parking brake.
It applies a lot of stress to the inner diameter of the rotor. Any stresses applied in any direction while a rotor cools and shrinks risks warpage.
If racing/tracking the car (when the discs get very hot), it is also advised not to keep the foot on the brake pedal immediately after the car has been stopped as it can also cause warping of the discs.
348 and 355 transmissions will provide the greatest resistance to rolling in the 1st gear as it has the lowest ratio (lower than the reverse: about 15% on 348 and 10% on 355). So it is better to leave it in 1st. I don't think there is much difference of engine resistance to turning (compression) between its normal running and opposite directions. However, transmissions on other cars/trucks may have the lowest ratio in reverse.
Thanks i was thinking the rotor warping rather than the hub. I did not realize the hub being as thick as it is could warp.
You are correct, sir. If the handbrake happens to slip you do not want the car rolling backwards. Plus, reverse is usually a shorter ratio than first, meaning that it will offer more resistance to rolling. But the important thing to consider is that you do not want to create a situation where there is a chance for the engine to rotate backwards.
