This is my only review for a product I don't own, so take my impressions accordingly...
The Dynafit PDG boot is by far my favorite of the many skimo boots I spent considerable time trying on. I tried both these and the more expensive carbon-fiber cuff model, in a few different sizes over an hour or two. First off, the weight is very impressive. Light weight in these boots is likely a function of thin liners with spandex-like ankle flex sections, and low shell volume (look at BSL vs mondo size). That said, I felt like I could get away with at least a half size smaller than my nominal size. They felt solid, thoughtfully designed, and lighter than similar stripped-down, non-exotic-materials rando race boots.
Eventually I got the LaSportiva Sideral at a price I couldn't refuse, but they are worse in every way than the Dynafit PDG; heavier, less durable, more flex, and worse fit. Still totally usable, but I was surprised at the difference between the two products -- especially considering their similarities of purpose and price.
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