I tested a bunch of different beacons and ended up selecting the Ortovox M2. You will probably get a different opinion from everybody you ask, but here is my opinion.The Pieps DSP had difficulty with multiple burial senarios, continued to return to beacons which had already been flagged. The problem with a beacon that 'thinks' for you is that you don't have the raw feedback to work with if the beacon's microprocessor gets into difficulty. The ortovox has good range, about half that shown on the dial, but requires plenty of practice and knowledge of some multiple burial strategies. The Tracker or Barryvox, while having less range are very intuitive and easy to use, more suited to recreational users and guided groups, who do not have the skills to use the Ortovox effectively. Ortovox is putting out a new unit, but as with most technology, the first generation often has glitches that need to be sorted out. So for my two pennies worth, I would go for the M2 if you are going to put the practice in, or the Tracker if you are looking for an easy to use unit, but with less range. Whatever beacon you get the stats for deep burial are not good, avoiding getting caught in the first place ought to be your primary concern.