How should i set my starting blocks

[States]

I run a 10.9 100m but i dont know how to get out the blocks good ..i use different settings everytime and my left foot is always forward ??

[l3et_sauce]

I suggest looking at this video.
http://www.youtube.com/watch?v=W1sIz7EMt8U

[States]

alright ,, thanks

[mudskipper]

I would start using the same setup every time. If you don't find a good setup and keep it consistent you're never going to be able to work from there. Everything but yourself needs to be as consistent as possible to keep your performance consistent as well.