Bruce Vigneault has posted about some high speed sync tests he’s run. Influenced by a photo expedition he did with Moose Peterson at Yellowstone National Park, Vigneault used a teddy bear as a model.
Using the PocketWizard MiniTT1, the FlexTT5, and the AC3 ZoneController, Vigneault experimented with different settings on his Nikon D3s. The shoot is well-documented, and is a great primer for what can be achieved with off-camera flash and PocketWizards.
Vigneault points to a recent Webinar hosted by Mark Wallace, which is all about High Speed Sync. This video inspired him to experiment. Judging from his post, Vigneault now has a firm grasp of what high speed sync is all about.