I have the Hinderer XM18 that is being copied by ZT, it is a tank of a flipper build wise but lite do the use Titanium. Blade grind looks to be one of the other options from Hinderer.
I wouldn't say copy because rick designed this sweet ass knife,
UPDATE!!!!!!
this is going to be a regular production knife!!!!!!!!!!! not a limited edition like the 0550 and 0551. it is also using kershaws KVT bearing system, can you say buttery smooth opening???? the blade steel has also finally been announced, it will be solid ELMAX, which personally is a bit of a let down but ELMAX is a hell of a steel, MSRP is stated around $325 so a sub $300 street price for a custom designed production with 3D machined titanium and G10, ELMAX, and KVT bearings is the deal of the year in factory knives. so yeah I'm a bit excited.