I have never used a gun, but the safety check sounds super important. Here there are already several error stoppers -- the pink highlights, the pink on the listing on the left, the error icon on top that I check before efiling; and then the software won't let you efile with any error. The pop-up box (for a few selected, mostly trivial errors) interrupts my work flow requiring an extra second of my time to check the no-thank-you box. Just a pet peeve, not fatal. I have memorized the occasions when the box pops up, and spend a day after transferring files, preemptively checking those boxes (Virginia has three pesky ones).