I'm part of a club up here and the president is always wheeling and dealing. He has let me borrow his AT Pro for the last few weeks while he was on vacation. It has the DD and the sniper. The sniper is NOT waterproof from what he says so I respected that.
Going from the big DD to the sniper I was thinking, what's this little thing gonna do for me? Well, tell you what. They say it's great for trashy areas and they are not kidding. You can zero right in on stuff separating the trash from the good stuff even if it's close together. That's why when I finally made a deal for mine I made sure it included the sniper, for sure. I can tell you I'm not as good as some of the people on here but in my humble opinion, you'll love it and later on it will add to the resale value as well. Not having the sniper coil is sort of like buying a cadillac but not springing for the A/C.
Correction- I guess the sniper that comes with the at pro is waterproof but not the one I had borrowed? I'd like some clarification on that part if someone would seeing how I just got the whole set up! Thanks!