You’re signing up for a world of pain in the real world, where every other system is UTC. Just use UT1 or smear the leap second if you really can’t stand the risk.
When my wife worked check-in for a surgeon, she used the line, "Good morning ${PATIENT_NAME}! What did you have for breakfast today?" as a shibboleth for sending patients home to reschedule.
I am working in this field, so I am aware of nephrogenic systemic fibrosis as rare condition caused by Gadolinium contrast agents in people with kidney disease. As far as I know, there was no new case in the last 10-15 years after the took certain less-stable contrast agents from the market and assessing kidney function is also standard now. In the aftermath of this, scientists discovered that Gadolinium is retained in the body after MRI scans to a small amount. As far as I know there is no evidence that this causes any harm, but as I said, this is a concern and this is why it studied.
Much like a brushless motor controller, if you pull towards the direction the rotors already faces, it's uninteresting. But if you lead the momentum in a different direction...
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