i think part of the speed is more to do with batteries as well!!! thats the main reason why i've given up the idea of trying evey single run in method so i prefer to spend time on learning about batteries and setup, also the majority of the methods are pretty much the same.... and like others have said sometimes you get dud motors so its hard to test which method will be good.

but i must say im interested to see how the 12V motor run in method would be like! SPracer sounded very promising,