I've sent him an email:
Dear memorabiliaworld2012,
I am going to take a wild guess and say that your Nagas and Mullin and Wiki are fakes. Actually Im not even going to guess.... They are fakes. I've looked at a few of your other cards and compared them to the signatures I have from the same players and a few of them are different. I will be notifying Ebay.
His response....
Mate, I can assure that these items were signed personally by the players with me at the Canberra leagues club. If you are not interested in the items I am would recommend that you don't bid but don't just act on misjudged information as I am not a fake and have had many satisfied customers.
Dear memorabiliaworld2012,
I will stand by my opinion that they are fake. Those 3 signatures look as though they have been penned by the same person. I got Ken Nagas to sign a few things for me this year and also back in the 90's. His signature has hardly changed in that time, so how do you explain the massive difference.
His response....
Mate, I obviously don't know what your signature looks like but I can tell you that these cards were signed by the players back in the late 90's with the same pen.
You are obviously set in your opinion but I can definitely assure you that you are incorrect.
Please do not bid on the item if you don't believe but please move on as you are incorrect and your opinion is not required. The quality of my feedback from buyers speak for itself .
Cheers,