Speculations on who was first: FX or RTI are all based on nothing. Nobody out here probably knows the right answer. And suing isn't going to help anyone here, I still don't understand why some people always like to sue everybody and everything they don't like???
FX's best designs are still the Royale and Boss series. Great pieces of kit!
Just to set some things straight about Leo: He never said that it is going to kill someone! I haven't read the complete english translation but since I know who translated it I think he didn't mentioned that too. I've read the dutch version of the review again, Leo is concerned about some construction structures that have some weaknesses when taking it apart and assembling it again several times for regular service. That's the reason he doesn't trust the gun anymore.
The 800 bar they've applied as test is something a lot of airguns won't withstand so kudos for that! The EN norm that Leo mentioned is one that can't directly be applied in this case because the material that's used aren't seamless cold drawn tubes anymore because they're machined. Because they're machined (and damaged as can be seen in the pictures) the formulas and strength calculations do not apply anymore. He knows that and mentioned it clearly in his review!
The problems with the venting holes and weaver dimensions are only minor issues which can be fixed rather easily, the constructional problems might need a good redesign.
Again, I'm not bashing the product and I'm not trying to stop you from using it, I'm just setting things straight. I really like the approach RTI has used by not building a conventional gun. I know, building something new isn't the easiest thing to do but I think they'll find their way

But be warned (and this holds for basically every airgun): if you're (re)assembling your gun and you don't trust something because it's damaged of crippled, make sure you change it for your own safety. Materials degrade over time and safety margins will shrink over time.