Let me be clear so we do not get confused. There are a couple of rods that can get confusing. Here is the rod I was suggesting. It is the Dobyns Champion DC684CB. That is a 6'8" medium heavy action baitcasting rod with a moderate taper. That is a slower rod designed to throw 1/4 to 3/4 lures with treble hooks. This slower action allows for a slower reaction to allow the fish to suck in the offering and protects you a little better so you do not pull the treble hooks out of the fishes mouth if it makes a hard run or sudden lunge at the boat. I would use it for throwing small to medium (0 to 15 foot divers) crankbaits, jerkbaits,wakebaits. rattle traps, and even top water baits like PopRs and small chug bug type poppers. I would also throw small spinnerbaits from 1/4 to 3/4 of an ounce, anything heavier or with real big blades might feel to heavy for that rod and your heavier rod might do that better. I love that rod and if I did not own a very similar rod from Irod it would be on my to get list. I would match it with a good Diawa Tatula or Tatula CT depending on which one feels better in your hand.
I would use your crucial rod for more than just drop shotting. It is a very versatile rod. Look at the following baits to add to the arsenal to be used on that rod. First go to Bass Pro's website. I want you to look at Luck-E- Strikes' perfect finesse worm rigs and their perfect worm hooks. They are different colors, weights and hook sizes available. I believe we use some of the 1/0 fineness and some of the 2/0 or 3/0 ,1/8 , 3/16 and 1/4. What you need are some grubs like Zoom 5 inch Fat Albert grubs. Match the hook size so it fits well. My wife has used a few colors all around the country. Salt and pepper,, watermelon red flake, green pumpkin red flake and maybe cotton candy. The nice thing about the hook with the weight attached you can change to a worm real fast like a 4 inch Berkley Power Bait worm in blue flec or green pumpkin, in fact all of the colors in this worm work at some time. There are a ton of other good finesse type worms like zipper worms, culprit worms etc. The nice thing here is if you have a perfect worm rig on you can change style of baits without re-tying.
The last two rigs I want you to get are must haves and your Crucial will work fine with. The first one to look at is a Gary Yamamoto's Senko. These are a very special type of finesse worm that would work terrific in the pond you spoke of. Gary's baits are really good but fragile, so a good option would be the Kanami 5 inch Flash. basically the same but cheaper. Cabelas has some house brands that are nice as well. These can be rigged wacky style meaning the hook is placed in the middle of the bait using an o ring or texas rigged but always a very small hook is used. The last rig I want to share is the Ned Rig. Go to Tackle Warehouse and look up ZMAN baits. It is called "ZMAN Finesse TRD(stands for THE REAL DEAL)" They are 2.75 inches long and made out of a very special plastic called Elaztec which is almost indestructible. I fished one bait and caught at least 20 big smallmouth bass on it before I replaced it. Along with the bait you will need some of the ZMan Shroomz jig heads. They now have 1/8 and larger ones but we fished all the way out to 20 foot deep with the original 1/10 heads. These look ridiculous but we caught smallies up to 6 pounds on them. All of these baits will work on your spinning rod,very well so add these tricks to your arsenal.
Now I would use your 734 for everything I did not mention for these two rods. I would throw heavier spinnerbaits like 1/2 to 1 ounce if I was going to slow roll a spinnerbait down a point in say 1 to 20 feet. This is what I would use to fish a heavier jig say 1/4 to 3/4 football head, , pitching jig ( not possible in a Kayak) or swim jig along with a plastic trailer. This would be the rod I would throw either texas rigged worms from 7 inches up to 12 inches with worm weights again of 1/4 all the way to 1 ounce. It is also a great carolina rig rod. If you notice I said to use the 684 for small topwaters. This rod can handle big Zara Spooks, buzz baits, chatterbaits and even some frogs like the Stanley Ribbit. These three rods would make a very versatile arsenal. And you will have fun learning new techniques to use with the two rods you already own. That is always a plus!