Ive been using gpz for years and I never come off and dont have a problem with their stuff. Its not like they seel bootleg needles, if you dont like them take it up with the manufacturer. I prefer BD of Terumo because Terumo syringes have the smallest fuckin finger slots, need to be a woman for them to be big enough. BD's are much better to inject. That said, pin wise I find no diff between the 2.