ud is bad imo, his loops usually have a consistency to them depending on the era and this one is very sloppy.
not too familiar with his early graph but first thing i notice on the front row is the spacing looks wrong and the letter formation is too big. his early sig tends to be more vertical and "squished" in more from what i've noticed. i've also heard alot of these "certified" front rows have been forged.
i'm sure chris and steve will chime in and correct me with their expertise