I agree this is my favorite sculpt of boba yet. The paint apps on this one is realy well done too, I actually think it is better than the Evolutions fett.
now... some disapointmets:
the backpack falls off easilly because of a short peg, as already mentioned
poorly sculpted helmet... it's too small and I would have loved to see a removable helmet with a rotating range finder (of course hasbro will never do that)
I also realy would have liked to see the holster for the pistol as a seperate hanging holster off his belt instead of being sculpted directly on the leg of the figure.
as for customs, this is the best boba yet. It was extremely easy to pop appart and rebuild the figure's lower half with gi-joe parts. The new ball jointed torsos they've been puting in the legacy figures lend themselves well to gi-joe parts...