I have the Forester and Dayhiker. They are something of a puzzle to me. When I first saw the video of the guy tearing apart a wooden shed with the Forester, I dismissed it as someone being stupid. When I first held the knife, I decided that video may have been a comment on his opinion of the knife, one which I came to hold when I started using it. As a knife, it makes a great crowbar. It can certainly take abuse, but the edge is about five times the thickness I prefer in a heavy-duty cutting tool. If I had a real use for a blade that big, I'd send it to Tom Krein and have him grind a knife out of it. Despite its excellent ergonomics, it can't hold a candle to my old Western W49 Bowie in side-by-side chopping and slicing comparisons.
The Dayhiker is marginally better after I spent half a day thinning the edge out on a Duckfoot diamond sharpener. Even after that, it won't win any competitions that include a Temperance I or II.
The two I have did not inspire me to complete the set, especially at the price they command.