Andy…
I have done both. For two years I trolled with my 115 Johnson. This year I joined the T8 brigade. Let me tell you, I’ll never look back!
During the warm months you can certainly do just fine trolling with the main motor, particularly if it will keep you in the 2-3 mph range. My johnson 115 4s does this just fine. Its fine speed control is lacking, however, and if I were to find myself between 2.5 and 3 mph, for example, I would have to be happy, even if most of my fish were coming at the low or high end of that range. In other words, I couldn’t control my speed over less than a 0.5 mph range.
When I wanted to go slower than low 2s, I would either drop my bowmount and turn it 90 degrees to give me some resistance, or drop a sock off a cleat, or both, to give me the desired speed. In principle this works. Sometimes it would work too well, and I would have to compensate for a slow speed with more engine rpms. This of course increases engine noise, and I would begin to lose confidence if I were targetting spooky fish in skinny water. This is also a bummer from the perspective of having to haul in the bag and get wet all throughout a trip, particularly if the water is cold. Neverthess, an economical way to achieve slow speeds, but again with little speed precision.
I popped for a T8 about 6 weeks ago. Had a chance to use it on the pond two weekends ago. Holy hannah, what an improvement. It I want to hit 1.8, I dial in the speed using the throttle, and away we go at 1.8. Wanna go 1.6? no problem, back off and away we go at 1.6. how about a run at 2.2? No sweat, 2.2 it is.
Here’s the bummer. I lost a screw out of my T8’s shifting mechanism half way through the last ngiht of the trip. It was stuck in forward, so once I turned it off I couldn’t restart it. So, had to go back to trolling with the big motor. Dropped the bowmount and then the kicker too to get me to less than 2 mph. I cringed watching my speed bounce between 1.5 and 2.0 mph, knowing full well that before the kicker konked out, all of my fish were coming slow, around 1.6.
Well, I spent a week picking my kicker apart and am happy to report that I can now fix the shifting mechanism of a T8, and I’m looking forward to putting it to good use next weekend.
I know kickers are expensive. Ask yourself how often you would troll….not just cranks, but spinners too…if you’re a troller (I know I am), then maybe it’s time to invest in a kicker. Used T8s often become available in the 1500-2000 range. I bought mine new from Marine Specialties…Paul Kanz at Marine Specialties is a walleye guy and an IDA fan and site sponsor…. be sure to drop him a note when you’re in the market for a T8!