I am writing to inform you that the remove the blocks bonus video for Marc 2015 works remarkably well in the following areas:
1. Since the background is dark the eye movement tracking of the flower of life symbol across the screen is easier and more consistent
2. The background from the earlier versions are quite distracting as the beautiful scenery and flashes did disrupt my eye tracking of the symbols
3. I feel more relax and could feel a sensation behind my head after watching the 7 minute remove the blocks bonus video which I hadn't felt in the earlier videos
4. Remarkable video!