Hi LI,
The rod comes down to what type of lures do you plan on fishing the most?
When you see tournament guys with 10 baitcasting rods and 5 spinning rods layed out on the deck of their boat, there is a reason. Think of it like golf... you wouldn't want to Tee Off using your putter, or put using your driver. You most likely wouldn't use a 1 iron to hit your ball if it is burried in a sand trap... you'd go in your bag and pick up your "sand wedge" so you have the proper tool for the job.
Fishing rods (and reels) are the same. A cranking rod is usually very different from a flipping stick. Treble hook lures generally call for more flex so that the hooks don't tear out of the fish as easily. Because you are using treble hooks, you don't need to set the hook so hard... you really just lean into the fish and the hooks penetrate. On the contrary, if you like fishing single hook lures like texas rigged worms and jigs, you need more back bone in the rod (less flex) so that you can drive the hook point in. When you stop and think about all of the different lures that are on the market, you can see where you might end up with several rods someday.
For now, you probably want to find a nice "middle of the road" rod. I agree with getting something that is 6' 6", or 7'. St. Croix makes some really great rods for the money. Their premier series is affordable and the models that they have can be used for crossing over between different lures and presentations.
I would recommend you checking out these two rods and see if you like one better than the other. I actually own several of each of these and have recommended them to many of the guys I know and they have been very pleased with them:
This rod is a 6' 6", Premier Series baitcaster with a Medium-Heavy power, Fast Action. It is a little on the stiff side, but how you compensate is by losening your drag (if needed for different lures) and not putting as much pressure on the fish.
Model #: PC66MHF
Retail Price: $110
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This rod is a 7', Premier Series baitcaster with a Medium-Heavy power, Fast Action also, however the tip on this rod has a bit more flex than the one above. It will give you better casting distance, but a little less hook setting power.
Model #: PC70MHF
Retail Price: $120
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Visit the St. Croix Website for more details:
St. Croix Website - Premier Series Page (Casting Rods) These rods have come up in price a bit since I bought mine, but they compare very well to other rods in that price range. They also hold up very well over time. Some of mine are 10 years old or more...