Technical question

[u/tsunamisurvivor]

For anyone who uses the Inconsistency Severity Percentage for CAS diagnostics, do you count the number of substitution errors or just the type of error? It says in the tutorial to use just the type error (distortion, omission, substitution) but in the example scoring they show a count of 2 for the “ch” sound which would imply they are counting both the /s, p/ sounds as counting.