it seems sharper than the butterfly

crab harmonic pattern:
X=$4.64
AB=0.38 XA
BC=0.88 AB
1.6 BC=$45
0.61 XA=$42
2 BC=$20.24
0.78 XA=$15.94
2.24 BC=$12.24
0.88 XA=$8.95
2.6 BC=$5.54
1.13 XA=$2.2
1.27 XA=$0.96
3.6 BC=$0.68
1.41 XA=$0.44
4.23 BC=$0.18
1.6 XA=$0.13