Here are my thoughts. That inlet is really challenging. It could be miles if you follow the markers. I think that the charter captains make their own markers out of milk jugs, bleach bottles, etc and move them as needed. It's tuff in the dark. I trailered my old boat, 31Fountain, to Hatteras in 2020. We followed someone out in the morning and everything was great. On the return I was completely zoomed in on my tracks and with the tide change, we ran aground. twin outboards shut down from all of the sand. After a long time we were able to get out and get the motors cleaned out with weed whacker line (no less than 100 times of sticking it in the tell tale) so that we could get to the ramp. The channel has ferry boats running all of the time to Okracoke and those things are intimidating! Especially, when your motors keep going out.
My advice is quite simple, use the marked channel OR if you follow a charter out in the AM wait for another one to return in the PM. Those tide swings are unpredictable. Outside of the inlet, the trip was amazing and fishing was wonderful.