unless somebody knows you and where you will be using it, its pretty benign…however better practice not to.
it sounds like you are on the right track, just write to your card, if all good, then do your xEM and you’re done.
when you do your xEM
these may be helpful
https://forum.dangerousthings.com/t/handy-dandy-tips-and-tricks/13041/2?u=pilgrimsmaster
https://forum.dangerousthings.com/t/handy-dandy-tips-and-tricks/13041/3?u=pilgrimsmaster