So i have been using my i phone with ballistic advanced edition here latelly and have a new kestrel 4000 that gives me DA reading that every one suggested to get because of the DA reading. but there is no where to enter the DA in the progam that i see. so i guess my ???? is with the iphone program how do yall enter the weather data???? same as exbal ?? and if so what good is having the DA reading if i can't use it. maybe a dumb ??? but this weather stuff has alway kicked my but.