yah i made 2 +2 archer coats into refined +2 archer coats, then oen to unique +2 archer coat when getting them to 120 to use to upgeade a level 120 +2 to a +3
make sure you have lucky time, if ur a DB buyer you have a better chance.. ALWAYS repair at pedler, she has a better chance of upping your gear quality than anyone else.. my guild knows this from a lotta experimenting and we ONLY use her to upgrade anything under super now... oh and my +4 elite necky was unique last week =)
EDIT:
IT'S NOT THE METS THAT UP THE QUALITY, IT'S THE REPAIR.. DONT GET CONFUSED AND FLAME THE post (ps. cruise control :P)