Well, I am certainly no expert on this subject but for me a longer rod doesn't necessarily translate into greater distance casting topwaters.
For reasons unknown I can cast topwaters with my conventional mounted on a 6'6" jigging rod further than I can cast them with my spinner that is mounted on a 7' popping rod.
I would think you would want to try it out at home first just to see. I'm not a big fan of anything 2-pc., but that's just me.
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"formerly" awesum