labsrule
I use two different rods to handle the various weights I run when fishing 3-ways.
For the heavy stuff, the weights in the 3+ ounce range, I use 9′ telescopic board rods. Plenty of backbone… but not a super fast, stiff tip. I like the rod to bend and give a bit. As webstj stated, that extra action provided by a slower rod tip propelling the weight and bait forward off of a snag or hang-up can be a real strike inducer. I’ve used very fast tipped, stiff action rods for this appication, and I don’t care for them one bit.
For the lighter stuff, rigging with .5 – 2 ounces of lead I use 7′ 6″ rods that also have a fair amount of give in the tip section… but they’re just no where near as heavy an action. These rods perform poorly when used to run 5 ounce weights as the tips darn near drag in the water under the extra weight… and that’s just overworking a rod beyond its intended capabilities. But they perform beautifully with the lighter weights and the extra sensitivity of the lighter action rod is a bonus when the bites are light.
For the heavier 3-way rods, look for something Med-Heavy to Heavy in action…. with a mod-slow tip section. And these rods can be had cheap. Plus the type of rod you’re looking for can be used as a board rod, lead core rod, etc. So it can serve double or triple duty in the boat.
For the lighter 3-way rods, look for something med-action with a mod-slow tip section. That type of casting rod can also be used for casting cranks on superlines, light catfish duty, pike fishing, etc.
Hope this answers your question….