There is no advantage decocking all the way down either.
I have the manual safety version, and I never decock all the way down. I always decock to half-cock. That way the hammer is not resting on the firing pin and firing pin block. No need to need to have unnecessary stress on those components. It's faster, safer, simpler to go to half-cock position. Half-cock is the normal resting place, especially for the BD model. (and you with your BD model have the advantage that you can get there with the push of a button, so-to-speak).
Congrats on your RAMI, and enjoy it at the range! You'll find out soon that she's a pure pleasure to shoot. One of the best sub compacts around if you ask me. Oh, and if your trigger finger starts to hurt, because of the funky radius of the stock trigger, get a 85 combat trigger for it. If you carry concealed a lot, you might also want to replace the grips. (The rubber has a tendency to grab shirts). Other than that, there's not much she needs. Enjoy and welcome to the RAMI club.