I have one as well, They really do speed up the work. My hunting partner shot a bull in the afternoon this season. I remember saying we better hustle if we are going to get this animal packed out before dark. I did break one blade ( on a hip joint) but I was back in business within a minute. My Elk hunting partners are all buying them.
Deer season we had two bucks down in the same canyon, the havalon worked as it does and we went through 2 deer with one blade. quickly
I have owned many knives over the years but the Havalon is great gear. I will never go hunting without it.