As promised, our local hiking columnist, Ed Parsons, provided some follow up about those crampons. Thought this might be of interest:
"On our way to Mount Adams, we were prepared for whatever combination of conditions came our way. Besides the usual MICROspikes for traction, we had a pair of Hillsound Trail Crampons to try out. Made by a British Columbia company, they are secured to your boots by stretching the rubber over them [boots], just like MICROspikes. The points are also attached to chains like MICROspikes, but they are longer, located on a rigid rear plate and a hinged front plate, and a little more like real crampons. There is also a Velcro strap to secure over the top of your boot. It is needed, as they could otherwise slip sideways if not so secured.
* * *
"It is well known that steep ice should be avoided as much as possible with MICROspikes. Since my buddy was fairly new to winter hiking, he used the Hillsound Trail Crampons, which had longer points and more holding power on a slope.
"I used MICROspikes, but since the ice on the trail was pretty soft and easy to penetrate with spikes, and the safety of dry ground and strong branches was very close by, I enjoyed a relatively safe hike up the icy section as well.
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"My buddy was impressed with the Hillsound Trail Crampons. Wearing them on the way down, he did things that I didn't dare to do with MICROspikes. ..."
[In the Conway NH Daily Sun, Saturday, March 24, 2012]