Scuba_Steve:SDI's flow chart from OW to rescue show that you require an AOW to take it.
Either you're mistaken, or their chart is very misleading.
I would assume as all rec agencies are the same, that this basic name calling of courses are pretty standard so my guess is the former.
If in fact this isn't the case, I'd bet telling the boat crew that you have rescue, as it's standard that this is done after AOW, that they wouldn't bat an eye on letting him on.
Please note TDI doesn't have a rec rescue course, it is properly termed SDI's course.
Interesting, I will have to ask. I know he starts next week and is not AOW.