Boy, you got me. I use to have a whites eagle, and i would trade for the eagle. But the 5900 i don't know. I think it would have the depth advantage over the 250. But if the 5900 is 10 yrs old, I'd stay with the 250, simply because the electronics of the 5900 might be getting tired. Not much help i know, but good luck with your decision. HH