When I made the video where I tested running an LM-2S on a battery pack, I was extremely frustrated while trying to push on-screen buttons on my HC-2. Since I was holding the camera with one hand, I had to operate the controls with only the other, with the HC-2 on a flat surface. Since the back of the HC-2 is rounded, it made operating one-handed a challenge, because when trying to press on-screen buttons, the HC-2 would rock side-to-side. I had to press several of the buttons 2, 3, sometimes 4 times before being successful.
So off I went to my local Home Depot. I found some 3/8 in. Self-Adhesive Vinyl Surface Pads that looked like they would do the trick. I bought them, got them home, pealed four of them from the sheet of sixteen and placed them on the back of the HC-2 as shown in the first picture. Now, when I place the HC-2 down on a flat surface (second picture), there is no more rocking motion while using any of the controls (the knob or the screen buttons).
I imagine these types of pads are available at various outlets, not just Home Depot. But the ones I bought are
http://www.homedepot.com/p/Shepherd-3-8-in-Self-Adhesive-Vinyl-Surface-Pads-16-per-Pack-9964/100047252 and priced at $1.86.
