recompose this grid

testing results for: sql
mac-mini
Cla-Dar-i64
sql/test/wlcr16.594 
wlr01 X X0.896 
wlr20 X X0.989 
wlr30 X O0.710 
wlr40 X O0.655 
wlr50 X O0.650 
wlr70 X X1.586 
wlr100 X O0.650 
70158 (Nov2019)