Is too high. You shouldn't be able to see print sheet between the lines on fist layer -that is, first layer must be solid.
[Mini+] [MK3S+BEAR]
I disagree. If anything you are a fraction too low, 'though your picture isn't sharp enough to be certain.
Your adhesion problems are caused by a dirty print-bed. Look up threads here about cleaning your steel sheet.
Cheeerio,
High
I got closer and it got better (acceptable). Printing a large piece now and I'll try closer still on the next piece. Thanks!
Here's just another of many first layer photos (PLA printed on smooth PEI sheet):
[Mini+] [MK3S+BEAR]
Update
Where were you able to gain success? With all the disagreement, I can't wait to hear the solution.
I got closer and it got better (acceptable). Printing a large piece now and I'll try closer still on the next piece. Thanks!
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Chuck H
3D Printer Review Blog