Yeah, the tripping / falling down thing isn't going to help...
You kind of have to use the "eye test" along with stats, because the number of times that happens will affect the stat line in a negative way...
All I know is I've been zeroing that TCK slider out since early PS2 days and it never brings me anything but a positive overall result...
I love the "fight / twist" for the extra yard(s) and hate the "stonewall" tackles...
In the PS3 era, I also always zero out the PRC slider, because in addition to opening up the CPU pass, it also prevents me from having about 5 of the top 10 "passes defended" guys at seasons end...
I figure, if you zero out those, fumbles and int's are pretty easy, so you then just "build" around that base in (for me) a "high end of AP" way...