The writer and I have constant disagreements on how the en dash and em dash look in a sentence – space before and after–or squished together. Apparently it’s a style thing and not a hard rule.
But I will always trust him with compound modifiers – especially ones that consist of an adverb ending in -ly plus a participle or adjective – as well as suspended hyphens. Producing annual reports for the last few months has kept the writing department hopping.
And don’t even get me started with dangling participles. I’ll leave that up to him too.