I have been in contact with hash-master and am waiting for them to allow me to pay with paypal. I want the protection paypal provides before I do business with them. If the transaction goes through and I receive my units I will report back here to tell members how the transaction went and whether or not this is a scam.
This user is most definitely a scammer. He had one account (theperfectrig) which was called out for being a scam - which he then abandoned & started this one. Once THIS was called out (as he had copied and pasted someone else's ad from another forum - follow the references on his trust pages & read the threads), he abandoned this topic and started a new one hoping people wouldn't notice.
I'm not one to tell someone what to do with their money, but PayPal or not, you're begging to be scammed if you deal with this user.
Best of luck though.