Don't kid yourself about those half cocked designs. I have a Glock, and the little bit the striker moves back to drop the striker, does not make it any safer, than a fully cocked striker. The striker blocker keeps the guns safe. Even in the "so called half cocked" strikers, the striker is back far enough to cause the primer to ignite, should the striker somehow bypass the sear (gun gets dropped hard, etc.).
The only way to be totally safe would to use a full double action gun, where the striker/hammer is only cocked as the trigger is pulled. I don't know of any full double action striker fired guns. This would defeat the purpose of the striker. Then there are the DA/SA guns, where you have to get used to two different types of trigger pulls. Or a 1911 style with the hammer down, but then the hammer would have to be manually pulled back, before the gun could be fired. Last resort to a safe action is a revolver.
I trust my blocker, as I have checked its function, with tape over the primer of a fired casing. I then tripped the sear with a small pointer through the back of the slide cover. No penetration to the tape, so it blocked the striker.
Bob