You’re gonna have to explain this one to me. Why on earth are salt-free fries that have been salted after they’re served (which means that the salt clumps and slides off instead of sticking to the hot greasy just-out-of-the-oil chips, as god intended) better than the regular ones? They may be two minutes or so fresher — probably no more than that, unless you’re going to Wendy’s at some ridiculous time like 9 p.m. — but they’ll be infinitely less appetizing.
You take the salt to confuse the employees. The fries are better since they are hot out of the oil. Most FF places have "by the book" holding times of 5 minutes. When was the last time you think most of them followed THAT rule?