The 320X5 is fantastic and will hold up to a lot of abuse! Haven't had that feeling of nervousness with the trigger on the 320X5 that you're describing. All my friends with the aftermarket glock triggers have no issues as well. You'll be fine!
This is our custom cerakoted 320X5 after being launched from the trebuchet
Fired afterwards with no issues! You can see the broken beavertail and slight damage to the frame here.
Sweet, glad to know they're giving discount on work at the custom shop!! I haven't needed to get anything done, but I'll take a look!