I was looking into buying a box of needles at some point in the future, and was wondering what the difference between "Micro Fine IV" "Micro Fine" "Ultra-fine" and "ultra-fine 2"? These are all names of the actual needles by the way and all are made by BD. I tried looking on their website to figure out the differences but I couldn't fine anything. Once again any help would be appreciated
1/2 cc's SUCK. A friend just turned me on to 3 cc barrels, and all I need to do is buy new tips, it's really nice.
