That's amazing, RV. Catch a day with no wind and you should max the BDT at 50 yards with little problem. One of those groups was heartbreakingly close as is.
When I got my CZ, I thought it was a bit expensive. Having had it a year, I consider them one of the world's last great bargains. This being the NEF board, I gotta add that the Sportster is another bargain. Mine won't quite shoot with the CZ, but it comes close and cost a third as much.