I have a unque ablity being I carry 2 pokewalkers. Mine and my daughters. We tried the same pokes and totals about the same but different pokemon we noticed a differance. Murkow and Mantyke so far have made the most steps. Look into it . Try the same area you walk in and change the pokemon. NOT ALL POKEMON ARE CREATED EQAUL!!:-) I hope this helps some people.

Of course, wearing two at once means that they pick up motion from different parts of your body and might count more steps or fewer steps.