I now have a Judge -- the Public Defender model -- with 3 inch barrel and small frame grip.
Fired it for the first time this weekend. I was prepared to be underwhelmed with .410 ammo, but I wasn't.
The Federal .410 handgun throws four OOO buck (.36 cal) pellets at over 800 fps with just enough but not too much spread. Pretty impressive. Recoil similar to a featherweight revolver shooting +P ammo.