Sentences like this are nearly impossible to figure out how best to say for me. "She is riding on the details" is what I put, but it is a fail. Which to me would equate to one who is looking out to assure all the details are taken care of, or on top of things. I would have never gotten this because even though I have heard "stickler" I have never used it once in my life.
Can someone who knows this phrase, à cheval sur, give another example of its use? I'm interested in whether or not there are any other possible sentence structures, perhaps using a verb after this phrase, for example, or if it must be just like this, followed by a noun.