Tweaking help.
 

I would like to know if you were going to tweak a running back (fast, but runs very straight), the world's fastest man, and a WR (to run very fast, but run fairly straight.) When I say the world's fastest man, I mean the fastest possible base (doesn't have to run very straight.) I would like the experts to explain how to tweak these in steps, like 1,2,,3,4,5,6,7,8,9, ect. I also would like an input on what bases to use in these positions. I have all proline strong double clip bases, polo green bases, orange bases, teal bases (very few), regular miggle bases (like that come with the Rose Bowl, but I may only have 1 or 2 left), clear buzzball speed diamond bases, and proline fast TTC straight front double clip. I would like some replies mainly on the tweaking part, but I just want to know kinda what bases work best in positions.
Thanks everyone,
Michael

trail and error....get in the lab and start tweaking away, you will ruin some bases, but the knowledge gained is priceless.