Nice work, Dick I like it. Hey, I have come up with a better method for tree rat control for city dwellers. You can buy one of those hav-a-heart squirrel traps at the hardware store for about $35. They work great! Once you catch 'em, the method of dispatch is up to you. I just have a problem launching projectiles at them in a residential neighborhood. Even from a pellet gun. My trap has worked so well I thought that I had rid my immediate area of the varmints, but I caught another one yesterday and saw yet another running down the fence. They are like coyotes. You can never be completely rid of them. My goal is to be able to go all summer without having to replace any cushions on my deck furniture. I will win this war!