This is something that has always caught my attention. I have been an instructor for 8 years and when I take my students on boat trips some operators charge me for my spot and some don't. I think it should be made a standard not to charge instructors if they are taking students on your boats. If the instructor is going for his own enjoyment then by all means he should pay. We as instructors have very little fringe benefits, I just think this should be one on them.