for movement I use FIP, then use that break rating as the starting point for whichever pitch a pitcher throws that typically has the most movement. for instance I'm recreating a pitcher with a 4-seamer, a 2-seamer, a curveball and a changeup, I'd set the curveball first with whatever rating I come up with, lets just say 78 as an example. then I move on to the next pitch that would normally have the most movement, the changeup. I'd give that a 68. then on to his third pitch with most movement, his 2-seamer, I'd set that at 58. and finally his fourth pitch, the least movement typically, the 4-seamer I'd set at 48.