I use Ezoic chrome extension to insert my ads placeholders. But right now, I want to change it using ad insertion since it gives me a better control on where the ads should appear.
The problem is I can't simply remove existing placeholders that I have been inserted in the first place using chrome extension. When clicking the existing placeholder, I only get two options: deleting the placeholder or don't show on the page. Meanwhile, deleting existing placeholders is not recommended, right?
If I don't delete the existing placeholder and proceed to add the placeholder code via ad inserter, will the add overlap each other? will it shows two same ads and break the layout?
Or should I disable the existing placeholders first and create a new set of ads for the adinserter insertion?
What is the best practice?