I had posted this on a local site but thought I would also post it here for anyone that might be interested in setting up a planer rod.
Offshore I used to be a diehard downrigger user but after I fished with a friends planer rod I was sold. Over the past few seasons we have been using a bridal system on our planer rod with a removable planer. If you are using large planers #12 old saltys or bigger you will need some heavy tackle to run the planers.We run all sizes of planers on my rod so I will show you the setup we use.
We use a rod that was made for running planers. The standard is a bent butt rod but the one I had made is a straight butt rod. I wanted a straight butt rod because I like to fight the fish with standup gear and not from the gunnel. My rod was made From a Calstar E-glass 80-100# blank cut to 5'. It has a large Aftco roller stripper on the tip and oversize 6 point guides on the rest of the rod. It has a Aftco straight but which I like to use but I also have the bent butt but have never used it. The reel I am using is a Alutecnos 50w2s mainly because of the drag rating for this reel but any lever drag reel with 30lbs or more of drag will work. It is spooled with 130 Jerry Brown hollowcore spectra. Here is a pic.
Once you get the rod you will need the leader system to make it work. There are many types of bridal system you can make. ( the bridal is what you clip your planer to) After trying a few over the past few years I decided to come up with my own version. All the ones I tried were heavy mono made with crimps or knots both of which are not guide friendly with big fish. Since I make windons a came up with a windon bridal which gives you a super smooth transition through the guides and onto the reel. The only knot you have is the Catspaw connection to the main line. The Windon bridals we use are 100lb mono 100 ft in length.
Now you will need the planer. I would recomend only using Old Salty planers. Here is why. Old Salty planers are the only planers you can trip while at trolling speed without being tripped by a fish. This is important because it is a pain in the butt to stop the boat to reel in the planer rod when you need to. The Old Saltys can be tripped by putting the reel in freespool for a slow three count. These planers come in all sizes depending how much depth you want to acheive. Personaly I like the size 12 or larger planers for the depths I like to fish. Below are the pics of the bridal system and a drawing of the windon bridal I make for my planer rod. Hope this helps. Just a note of warning. Your planer rod is under tremendous presure so make sure you have a good rod holder I prefer a Swival Rod Holder with a backing plate.
Here is a drawing of the Windon leader I use.

...................Tight lines Mark