Cool that your gal will shoot with you and seems to enjoy it! I taught bamawife to shoot, but it didn't go past that, just not her thing.
I suggest you retitle your post to "Expensive fun with the sidegate"
I have a long history with the .410 as a hunting gun and a pest gun around the place. I'll always have some variety about......currently it's a Win M37. Back when I was running beagles, I had a Rem 870 and a Mossberg 500 so chambered, but moved them along when I stopped running hounds.