My Grid

Some of ya noticed the grids i made other day..
Low 0=3, 1=4, 2=5, 3=0, 4=1, 5=2, 6=3 7=0. 8=1 and 9=2

high 0=7, 1=8, 2=9, 3=6, 4=7, 5=8, 6=9, 7=4, 8=5 and 9=6

You can do it on paper or use slasher
first line: original draw
2nd line: mirror
3rd: low
4th line

for example 010

0 1 0 ( original)
5 6 5 (mirror)
3 4 3 (low)
7 8 7 (high)