Since the time requirements are so mixed up, you may be able to use or get some NC time on your AB ticket to meet the minimum requirements. If you are looking for a job in the oil patch, go for a 500 Master/Mate w/3000 ITC. Do not make any assumptions based on logic as far as the USCG is concerned. Plus if you do not like the answer that you get from the USCG then hang up, and call right back you may get a different person and different answer. Good Luck.