Dual Station GPS

[Brass Monkey]

For those of you with midsize flybridge boats with dual helms, what kind of GPS/fishfinder electronics do you have?

Handheld?

One station fixed-mount only? Upper or lower helm?

Black Box dual station?

Does anyone use completely separate units at both stations?

I'm interested in upgrading and I'd like to hear the goods and bads from your personal experiences...

Thanks!