Your guide should be a professional, which means that "the customer is always right" should apply. If I were a guide I would try to explain my strategy quickly, take your point into consideration, give you the choice of what to do after adding my opinion, and then we would follow the course of action that YOU chose. I would make sure to give you the standard disclaimer, "This isn't the way that I would do it, so if you get skunked don't say I didn't warn you!". That is how I would handle it.