Actualy, I bought the bullseye 1 about 6 weeks ago (when I got my first detector) & it stopped working last week so I got the bullseye2. I prefer the 1st one over the new one, although it didnt have the sensitivity adjustment it was much louder, I am having to take headphones off one ear to hear the pinponter #2. Im getting used to it & it is a nice machine, you may buy the new one & end up giving IT to your son..................I dont think it gets 1" better but you can turn up sensitivity on #1, the adjustment is inside the case. I read a post somewhere on this site about it.