Well, the usual warning applies: don't expect your audience to be as impressed as you are. A good arrangement for standard bass has someone else do half the work for you, and instruments may be optimised for making good use of it.
That being said, I just now found myself somewhat irritated by finding that a standard bass accordion with pretty similar registration and build as my main accordion (which has standard bass and free bass) sounds less cutting on the bass side while masking the melody side more. I have no clue how that works. So for whatever reason, my free bass capable instrument is better suited for more classical bass styles than its standard bass cousin even when only using its standard bass.
That's one impressive converter instrument you have there, by the way. Good for making practice addictive.