Maybe it helps with size of pin? Lower BAC volume = smaller syringe. Or maybe it's just generally less use of BAC in general? Is there a big downside if no pin site issues?
and FWIW, i'm glad for all the activity on Reddit. I'm just over 6 mos. into researching and have found it to be super helpful. I found this site via Reddit commnets, plus many other useful resources.