OK first I know, I posted this question in 2 forums and that is kinda rude but I am in the middle of placing an order from Lion and don't want to have to place 2 orderd if I don't have to. Also thought more people vist this forum than any other so forgive me for double posts. Lion doesn't show 21ga pins that I have been using to draw with and was wondering if the 18g would be ok or if they would be too big and the vials won't seal right if I use them. Thanks for any help.