I had a few vials of Prop from Hammer I acquired thru a deal, they added the prop to make up for a problem on the last deal. Gave it to a bro to use, he said the pip was awful & after going through 2 vials he said he couldn't tell anything, said it was either bunk or severely underdosed.
I agree with the others, with all of the good reliable sources here, there's no reason to chance it with such a shady source as Hammer, IMHO.