First, I almost never use a safety on an airgun, unless I'm hunting.
Second, I've still not figured out the Boss trigger. It's one complicated dude and I've had more guns apart than most will ever see. No kidding, it's that difficult, but I'll not give up. For those who say it has a "fake" first stage, I've talked to those in the know and they tell me that properly set it DOES have a true first stage with more sear engagement. I've had my trigger aaallllmmmmost there, and then lost it all. I'll tackle it this winter again.
As to the standard Royale trigger, if you're willing to live with the first stage not returning, it can be surprisingly light, in the 5 oz range with no trouble at all. It's a good trigger. Some say it's a funky design, but a lot of triggers fall into that category, I invite you to look at the Win M70 trigger, and CZ 452 etc.
The Royale is one fine rifle, both of mine are so accurate and never shift that I feel confident in picking them up anything and taking a shot at whatever needs shot. If I were to get into air rifle benchrest, one of my Royales would get a modified stock with a flat forend and away I'd go. For bench shooting where you'll never cock the gun unless you're shooting, then I'd go even lighter on the trigger and that would be one gooooood shooter.