Hey bro- Three of my good friends took it in the 20cc bottle and got good gains. I was suprised to see the sides(acne) but the muscle mass was very impressive.
Austrailian made vet gear that comes in both 50cc and 20cc multi-use vials. I've used it, it was okay but not as good as Zambons (what winny is?). Like the guys said, it does have a tendency to clog the pin since it is not micronized.