The only AAS I'm familiar with are those sold right here in the USA. I'm making an order over the pond and have gotten some good feedback on the karachi sustanons. Though the guy I'm talking to is out of karachis at the moment but has these Niles in stock. Any opinions on these? By the way, what is the difference in a karachi sust. vs. a nile sust.? Is it just made by a different company?