Tweaking Prolines for speed.

[Taylor]

I have asked for TTC tweaking, but now I want to know how to tweak a proline strong (rounded or straight front) rookie base to run very straight, but fast. I would like to know how to tweak a proline rookie to run as fast as possible, not caring about the direction, and I want to get a proline rookie to run fairly straight, but very fast (like a wide receiver.) I would also like to know how to tweak a strong, but straight proline rookie.
ALL BASES ARE PROLINE STRONG STRAIGHT FRONT OR ROUNDED FRONT ROOKIE.
Thanks for any responses.