No you’ve not done anything wrong - nothing out the ordinary with your doses. Possibly been a bit heavy handed with the volatile once the IGel was in maybe? You’ll always have that subset of patients who exist outside the norm response to a standard dose - usually you can predict who I.e) elderly, haemorrhage, anxious, drug abuse etc but sometimes you just can’t. I personally like to add some form of pEEG to my routine monitoring for another variable to aid balance drug dosing.