Yep it deffo works, i spent like an hour yesterday doing this. just get the hair dryer, then slap it on the highest temp setting and move over the decal in a cicular motion. be patient though. Once youv taken the sticker off youll be left with a load of gunk. just use some cleaning stuff (i used white spirit, but i later found out this isnt advised lol) but supposeadly petrol does the job good! ... let us no how you get on !!
Tom