My needs are simple. D.A. and wind speed. I have a PDA full of ATRAG and was wondering what might be the best Kestral to keep it simple. I have read on another site a while back that the 2500 may be the way to go. From what I think I understood is that you set your elevation to zero and the DA will be spot on. Am I way out of shape on this.....I REALLY don't know squat about it and have alot to learn. I don't need extra bells and whistles. Please set me straight so I don't waste my $.......Thank's