People call this Shiv Technique and I have demonstrated this many times in live workshops in India.
This was from our RADS Mumbai live Airway and PNS Guided Nerve Blocks Workshop. Consent was taken by the local team from patient for videography and sharing for teaching on the social media.
There is no need to use opioids for insertion of Supraglottic Airway/ Devices. What you need is understand the pharmacokinetics of the drug, it takes just 20 secs for it to reach the brain and less than 60 secs for peak plasma concentration