
THESE WORK FOR ALL REFWALL OR PERIODIC IN X

gr0
gr0a
gr0b
gr1
gr.11
gr.15
gr.16
gr.19
gr.19l3
gr.19s2
gr.19s2.4
gr.19s4
gr.19s4.1
gr1rick2
gr1mike.thin
gr2
gr2.0
gr2.1
gr.292.11
gr.292.25
gr2a2
gr2a4
gr2ann.l0
gr2ann.l1
gr2ann.l2
gr2ann.p1
gr2ann.p2
gr2ann.p3
gr2ann.p4
gr2ann.p5
gr2ann.p6
gr2b
gr2c
gr2cross
gr2d
gr2d2
gr2d4
gr2dave
gr2e
gr2f
gr2g
gr2h
gr2.inf
gr2mike
gr2mike1
gr2mike2
gr2mike3
gr2r1
gr2r2
gr2r3
gr3a
gr3ann
gr3ann2
gr3b
gr3c
gr3mike.3
gr3rick
gr4
gr.7
gr.8
gr.8a
gr.ann.1
gr.sstanley.1

THESE HAVE GRIDS INCOMPATIBLE WITH PERIODIC IN X

gr2ann       WORKS FOR REFWALL, NOT VALID GRIDS FOR PERIODIC
gr3mike      WORKS FOR REFWALL, NOT VALID GRIDS FOR PERIODIC
gr3.rz       WORKS FOR REFWALL, NOT VALID GRIDS FOR PERIODIC
gr4level     WORKS FOR REFWALL, NOT VALID GRIDS FOR PERIODIC IN X

