I arrived at my dive destination in Honduras with all my gear and after a short talk with the operation ( we had been talking for weeks on line before) and it's head guy, he informed me I would not be able to dive deeper than 60ft. since I was only O/W, I thought he was joking at first, but he was not, I went home that night and looked over my log books going back to early Australia days, it amazed me how many of my dives were over 60 ft. (far the majority) and at how many dive operations did not ever even 'blink an eye'. Well long story short, I ended up taking his AOW course, and it was a breeze, what did I learn, well not a whole lot more!!! But I guess when it comes to diving anything learned or re-learned is beneficial. But can you imagine the frustration I felt when I first arrived at this resort and learned I could not dive deeper than 60ft. while others around me were doing there DM course with less than 100 dives and some doing there AOW course after only 15 dives or so. Nothing replaces experience when it comes to diving, and what an experience I had there!!!!!