100ml of prop in each delt and I couldn't feel a thing. Obviously if that changes in the next day or so I will let everyone know.
The UGL stuff is even lower viscocity, but they both went through a 27g pin just fine. I use Terumo, the pushers have a very strong base.
I also have some beautiful Naposims looking at me right now
Compared to ProLine prop cut in half at 100mg/ml, which is absolutely bearable, these are 100% painless no BS. I always test by raising my arms, no pain or feeling at all.