Don't know about the Boker but I do know about the Heiho, Hissatsu and the Otanashi Noh Ken as well(the 3 are a series). The Heiho is fine for a small AO folder as long as you get a good copy of one. The first copy of the Heiho I got literally flew apart in pieces upon opening the day after I got it. I complained to CRKT and they sent me a hand picked copy from their warehouse, very cool. The Hissatsu is handicapped by one thing and that is that its Autolawks only which about eliminates it for self defense. The Otanashi on the other hand is one of the best knife purchases I have ever made. It is HUGE! Well built in Taiwan it is the highest quality most well thought out CRKT Ive ever handled. It is like having a sword in your pocket.