if u drag alex's maggette's face file into fshtool, u will find that there is only one bmp file in it, which is of high resolution, instead of 4 or 5 images like in tony's and devastator's face patches... By doing this, the game will only read the high-res image file thus the preview will look great bcoz' there's no mid-res image to choose from!
NOTE: this tip i think is only for pple with shit graphic cards coz' nba live doen't let u set texture details to high..