Fishhawk X4. No coated cable to replace (in turn your downrigger counters are still accurate), battery life is great (did not change batteries all season last year), works without skipping a beat 120'+ down, and a smaller probe so you have less blow back. Depth Raider and sub troll are good units also. They are a little cheaper than the Fish Hawk but the replacement of coated cable over the years will make up the difference.