I already have a Para2 and Manix 2, My 0550 (I don't know if gen 1 or 2) is inbound shortly, as I'm looking forward for the comparison between the Manix and ZT.
I think you will find that the Manix and the ZT a couple things in common. 1. They have a blade and 2. They fold. Two entirely different knives in my opinion.