As a lefty, I have no use for a single trigger gun with the barrel selector as a button in the trigger. They are always set up for the open barrel with the button on the right and it is awkward to change from the left side.
That's a little hard for me to understand. It is no harder for a lefty to push from right to left than it is for a righty to push from left to right. As a right-handed shooter I used to shoot O/Us with this type barrel selector all the time, and never noticed it being a problem to move from left to right. I just curled my finger under the trigger guard and pressed it.
Not being argumentative, Tom, just don't understand why it is that bad of a deal for you.
SRH