I was going to join GSSF next year, but Uncle Sam decided to send me on a little vacation for six months next year. The timing means I'll miss most of the matches within driving distance. So I saw Krag's thread on the Statesville match, and though what the heck, no time like the present. Anyway can I join GSSF at the match and can I register there, or do I have to do so in advance? I'd hate to pre-register and then have Uncle Sam change my mind for me.