I'm certainly no expert but I do troll allot due to the nature of the small light boat I fish in. The Inflatable is tough to cast from but is serviceable if under power.
Here's what I do at Texoma:
1. if you mark fish that are less than 20 foot down in water (regardless of depth), I will troll a Citrus Shad Bomber crankbait at 2 mph. You can go up to 3 mph, but I would change to a umbrella rig at the higher speed. While the lure will only go down about 12-15 feet, the fish will come up and take it. This is what I fish with 90% of them time. If you rub some of that Strike King anise/shad stick on the lure you'll catch everything from Crappie to catfish along with the stripers.
2. If the fish are deeper than 20, I'll go with a two jig one crankbait rig. You make this rig with one barrel swivel, three number 7 clasp swivels and 36 inches of 40 LB test fluorcarbon. You'll need the heavy fluorocarbon line, as you'll quite often get multiple fish on. I've never pulled in more than one over but have pulled in three box fish before. The big ones will bend or break the hook or swivels.
Attach your swivel to the barrel swivel. You can pre make these rigs and store them in a plastic bag for later use. I normally use two 3/4 oz chartreuse jigs with 4 or 5 inch Powerbait ripple shad. I've also used Powerbait pearl red eyes and chartreuse Gulp bait. I think any jig will work.
This rig will begin to hang up at 25 feet when trolled at 2 MPH. I've had striper on the bottom at PK in 40 feet come up and take this in mid day in the summer. When the bite is slow, go with this or the umbrella rig.
3. Umbrella rigs - I don't use them much because they are expensive and I don't use braided line. I tried braid but can't put up with the wind knots. I'm using 12 lb low vis green suffix and have never had it break with a fish. I caught an 18 lb striper at PK last year and numerous 10 lb fish at both PK and Texoma. That said, the mono will break before you pull a U rig from a tree or stump. When I have used umbrella rigs they work really well when the fish are in the upper 25 feet in clear water. You need to know the water you are trolling extremely well or you will lose the rig.
In the summer I like to use them along the rocky shore when going back to Eisenhower park to take out. The water is deep there with few obstructions as long as you avoid the points and quit often has stripers moving in at dusk. I'll troll them along at 3 MPH. A hit from a big striper on the little boat at that speed bends an ugly stick almost double and turn the little boat 90 degrees.
4. At Dusk, often I will use a square bill crank bait or one of the Berkly flicker shad and troll in less than 10 feet. This works very well from Highport to Mill creek or in sandy areas. Like I said before, you have to know the area or you'll find one of areas with stumps and lose your lure. With the floating crakbaits you can stop and cast and work the points and areas of interest hard and then move to the next spot. In 2013, I caught 8 smallmouth at Eisenhower that were over 18 inches using this tactic at dusk and after dark.
General tips: I see a lot of people just trolling along in probably empty water. I consider this a waste of time. I would not do this. You should wait until you mark fish then troll or hit an area where you recently saw fish. Make sure you passed over the troll path before or know it from past experience. A sudden unexpected change of depth or a tree will cause a hang up.
Good luck. Send me a PM if you need clarification.