Should I ask the expected level of technicality in the research statement while appyling to a potdoc position?
Don't confuse an application for admission to a graduate program with an application for a postdoc. In most cases the application will be read by people well versed in your field, if you have matched your skills to the listed requirements.
I think you can be much more technical in such a situation and it will probably serve you well. The only caveat is language that implies that you have no flexibility in what you intend to pursue in the position if it is awarded.
You aren't writing for a general audience, but for people looking for expertise. Being to &quot;soft&quot; will work against you.
And tailor each such application to the specifics of the listed position. Don't try to depend on a general letter that &quot;might&quot; work for a lot of similar ones. Speak to the audience.
So, I don't think it will serve you well to ask them how to write the application.