My experience with altminer it's not a good one. They made me lose 100$ in a day. I was mining Stracks coin(Stak), and my software was detecting many blocks and the pool didn't register any all of the sudden. I asked them about this problem on many twitter posts and facebook but they refused to answer my questions. I recommend you not to use this pool at all they scam and afterwards they'll say it's a problem with x & y when they'll just take your money.
Stay away from this pool.