Conditions are key, flat calm, with the wind, against the wind, all play a major part in what your consistent speed will be.
I had a 193 with a 200 ETEC HO. It would troll at 1.5-3 mph easily.
My 208 will troll at 2-3 mph with a 350 Verado, just use the troll feature on the Smartcraft gauges.
In both cases, if it was a little too fast, I’d either put the Vantage down and run it in reverse, or put in a drift sock. Both are effective, the Vantage is super easy.
Both Evinrude and Mercury claim it doesn’t harm your big motor to troll with them. That’s good enough for me. I didn’t run a kicker for several years for the same reasons as you – added cost, added weight, and added maintenance. Between a good 36V bow mount and the big motor, you can definitely troll without needing a kicker.
I do more trolling lately, and I’m running a kicker now. The biggest reason for adding one is to keep the hours off the big motor, but you also have more precise control of your speed. Other benefits are the backup safety factor and the better resale.
The V193 is a great boat, I really liked mine. Lots of room, lots of storage, dry, and they ride great. The only downside is with the 200HP max rating, they aren’t speed demons. Propped right though, they’re great performers and more than capable of being an excellent crossover fish and family boat. If you’re looking at new boats, and family use is a factor, you might want to check out the 198. The jump seats are super family friendly and the ski pole is a great option.
Waxy