I pan to open a jigging and popping specialty shop in NJ soon, probably as early as September. As the shop is designed to provide products which I used successfully or with which I have confidence, I ordered many items to test myself and get to know them. One of the items is Jigging Master products. Jigging Master rods are well known among jiggers throughout the world and have very good reputations as one of the strongest rods and well balanced. but I got to try them myself before I carry them. I got 500g 4'8" and 5'2" JM Power Spell rods from JM. Boy, 500g rods are not joke. They seem like broom sticks with thinner diameter. I would rate them 600g and up. I feel like I can land any tuna, even cow in 150 - 200 lbs with the rods. The rods are not light, but you can see them as serious jigging rods for big fish or heavy jigs for jigging deep. I don't know any jigging rod records over 30 kg of weight test as 500g Power Spell. I think 300g - 400g JM Power Spell are good for our average size tuna as even 300g JM Power Spell surpass most of 500g jigging rods of other brands by weight test. I am pretty simple guy and like to use tackles as simple as possible. When I made some inquiries about the jigging rods, I am in awe how they are serious about making rods and every components they use and every parts of rods are accounted for and explained for. While I am examining the rods, I get the idea the rods/blanks can be an excellent chunking or live bait rods for tuna, even for cow as the rods/blanks are super strong and very light to hold all day and easy to fight as they are parabolic action rods. The other application is to catch big AJ or grouper on jigs or baits at oil rigs. I observed on the Big E that many guys use very heavy rods and 30 - 50 reels to target them. I think it is much easier and comfortable to use ligher, but strong rod like 500g JM with smaller, but powerful reels like Daiwa Ishidai, Trinidad 40/50 or John Baker reels. I can't wait to fight big tuna with the rods.