Presenting Keynote via AirPlay Mirroring Limitations

I just finished an annual awards banquet where I display a Keynote presentation on two screens and thought I'd share my experience.
The presentation is on my MacBook Pro, and this year, instead of running cables to both projectors, I tried running one of them using AirPlay Mirroring to an Apple TV. The other projector was still connected through the Thunderbolt port. (AirPlay can't mirror to two Apple TVs at the same time.)
First off, I could only make this work with the laptop lid closed. That's because AirPlay only mirrors the primary screen, and the projector connected to the Thunderbolt port is secondary--unless the lid is closed. Keynote has no option to present to BOTH the primary and secondary screen--it's one or the other. This isn't a big problem if you have an iPad or iPhone, however, because you can use Keynote Remote on the iOS device to run the show, and that's pretty slick.
Here's the big problem... When the Keynote presentation is static on any given slide for more than a couple of minutes, the AirPlay connection is dropped and the screen goes dark. This happened to me every time an honoree was giving their acceptance speech. In order to restart the show I'd have to open the laptop lid, switch to Finder and reconnect AirPlay to the ATV--all of which is unattractively displayed on screen for everyone to see.
If anyone has a work-around for this I'd love to hear it, but hopefully Apple will look at presenting Keynote wirelessly as an area that needs improvement. If you're interested in this, please submit feature requests to Apple! http://www.apple.com/feedback/keynote.html
To summarize, the limitations I found are:
1. AirPlay won't mirror to multiple Apple TVs simultaneously
2. Keynote won't present to the primary and secondary screens simultaneously
3. AirPlay disconnects after a few minutes of static screen activity

Sorry for taking so long. Go to Settings and scroll down through the list of apps to Keynote, select it, and you will see the iCloud setting. But this workaround has not worked for me consistently. Don't make changes to the presentation until you turn iCloud back on.

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