to introduce early bird discount for Group A ..... and may be even extend to group B.
So that SIXGA could have estimated numbers of players early.
e.g.
2 months early -- $30 for Group A
1.5 months early -- $35 for Group A
1 month early -- $40 for Group A
0.5 month early -- $45 for Group A
within last 2 weeks of registration -- $50 for Group A
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