Quick update on my test subject. Tried just the BW by itself to verify, and no issues with just it or the BPC-157. Mixed up a new vial of VN and administered it yesterday afternoon. Same result with the red welt. These are very irritating and don't just immediately go away. It's 2-3 days before it's gone.
I'm going to try one more fresh vial of VN today and see how that goes. Maybe even one from a different kit?