Radar can also be used to gather intelligence on the competition. A few years back, during a very slow day of fishing, I heard a couple of captains talking about multiple bait balls and a red-hot bite. I knew both captains, but not well enough to ask them where they were. Then I heard them discussing a big freighter that was rolling through the area, closer to the fish than they would have liked. A quick glance at the radar showed a huge target next to two small targets, about 12 miles to the south — and I knew exactly which way to head. Yes, I know, this is almost as bad as radio-fishing (and, no, I'm not going to count the VFH as an electronic fishing tool!), but when fishing is tough and you need to make a change of course, the smart move is to swallow your pride and take every bit of info you can get.
Even your humble autopilot can help steer you to the bite. Not only does it free up your hands for running teasers and kites, it also allows you to replicate successful patterns and try some new ones. The "cloverleaf" patterns in particular can be very effective when fish are holding over a specific spot. And on those days when fish only seem to hit baits as they cross in and out of the wake, you can set the autopilot to make regular S turns.