We found a new diver that escape previous research: Davis Instruments offers a very simple to use one, the Fish Seeker. 6 positions for the reel’s line, 5 positions for the lure’s line give multiple solutions to reach a predefined depth. You want to reach 30′, it’s C2, like in Battleships, if there is a fish, you catch it.
The table is easy:
| line | depth | line | depth | |||
| A1 | 80 ft | 5 ft | D3 | 100 ft | 45 ft | |
| A2 | 80 ft | 10 ft | D4 | 100 ft | 50 ft | |
| B2 | 80 ft | 15 ft | D5 | 100 ft | 55 ft | |
| B3 | 80 ft | 20 ft | E3 | 100 ft | 60 ft | |
| B4 | 80 ft | 25 ft | D4 | 100 ft | 65 ft | |
| C2 | 80 ft | 30 ft | E5 | 120 ft | 70 ft | |
| C3 | 80 ft | 35 ft | F4 | 120 ft | 75 ft | |
| C4 | 100 ft | 40 ft | F5 | 120 ft | 80 ft |
