Hi let me just say i was lost without this site today(glad its back

)
I am currently doing the family guy which is full screen(4:3)
Now when i used the ma script on it with grip crop i get black bars on the top and bottom
Code:
GripCrop(528, 480, overscan=2, source_anamorphic=false)
GripSize(resizer="BicubicResize")
But when i use moviestacker and uncheck
use GripFit i get this
Code:
BicubicResize(496, 446, 1/3, 1/3, 4, 0, 712, 480)
AddBorders(16, 17, 16, 17)
I get full screen,
Can someone tell me why i get the difference and also if i use the gripcrop one(the one with the bars) will it still look correct because i think it looks a a lot better