I was reminded of a great technique for customizing a PowerPoint presentation on the fly to suit your audience. It was demonstrated by veteran speaker Ruby Newell-Legner, CSP at the NSA Georgia meeting this past weekend.
It is simply this: print or write a listing of the titles of the slides that introduce each major section in your presentation along with their specific slide numbers. Keep this list handy during your speech. Then as you present you can determine which sections may or may not be most appropriate for your audience. Instantly jump to that section by typing in the number of the slide and pressing enter. No need to exit the presenter view and fumble around with the mouse.
This creates the potential for having one master presentation and using the best sections for each audience.
A smooth move.