I know I'm late to the party, but I have one of those old Jon's Sports Shop CZ Bobwhites that they were pushing a few years back. Its choked modified and full. It's not a bad little shotgun for the price point. .410 sized frame, decent gloss bluing, and very plain, yet serviceable walnut. Thing points like a wand.
...patterns decent too, and both barrels are regulated pretty well. These were shot with Winchester AA 2-1/2" #7 shot. Speedy load at 1300fps. Works well for squirrels out to twenty yards or so.
Here are the patterns with the AA's at 20 yards. Circles are 9", and the black dot was the POA.
Full choked barrel:
Modified barrel: