No, I think you misunderstood what I had said. The post was intended to say that you can't get a strobe that has many options as the ISS 4000 for <$200 that has *in addition* auto-exposure...How do you get it to work in auto-exposure? Your camera has real time TTL that closes the shutter the instant it senses enough light came in?
Hope that clarifies...
My feeling with a single strobe rig, is that it's almost tough to have *too* much light. However, I'll be doing some experimenting on both day and night dives...