Buck, or is that Mr. Shot to me?
In general, 3 man goalie are/will be used for the North American events.
Adding weight is extremely easy by placing sand/lead or pellets into heavy duty bags and slipping them into the legs of the table.
If you have more questions, which I am sure you will, I would like to answer the question off this forum.
brad (at) fireballtablesoccer (dot) com this way I can get your email address and converse via email and a phone call. If you wish, my phone number is listed on the site under contacts.
Please give me a shout.
Brad Laurine