If you are looking for general specifications for a rod, sounds like you want something that has a little stiffer tip. You don't want a wispy noodle style, as that would dampen the jigging motion. If you can, try and find a Angling Buzz video where Brad Hawthorne explains all this. You want to be in control of the jig, in other words, you want to maintain a tight line on the jig and have it bounce when you want it to. Softer tip rods will allow the jig to float on the reaction.
I tend to use either a light or medium stiff rod for these types of jigs. I am not using the tip as a visible cue for a bite detection. Depending on the size of perch or walleye you are chasing, you could go to either end of this style or rod. Length of the rod is what you can use if you are fishing inside or outside a shack. Longer rods allow you to stand near the hole and still have the tip of the rod near the hole. Shorter rods allow you to fish inside a hub/flipover and still be able to set the hook. If you have ceiling height in your favor, you can go to the 32" - 36".
