Sorry to butt in if this has already been worked out, but in English going with your instinct is like going with your gut feeling, or what you think may be right based on previous experience, right?
Anywho, I found this on space alc:
* You know, go with your guts, go with your instincts.
本能的に直観でやるだけさ。 go with your inst...の意味・使い方