I bought twins & when they are worn out, I will likely purchase another set, . Twins work for me & they please my eyes more than a single & kicker on a CD 22 & 25, but I don’t think they are the best choice for all. Many, I’ve compared with get better mileage with their single & kicker set up, then our twins & the points about hitting logs or other obstacles with both motors down at speed or entangling them in ropes or nets perhaps valid. Though in 23,000 miles of boating with our CD 22, I’ve several times hit obstacles or entangled a rope in a prop, but never taken out one prop let alone both & with rope entanglements, several times one prop never both at once. Yes the kicker out of the water is protected, but when needed immediately not as fast to put in operation as a twin when operating on the other. I have many times, while running on just one of the twins, entangled it in ropes or kelp & was immediately able to switch to the other, in those places I would have been in deep doo doo in the time it would have taken to employ a kicker. Yes, hull speed is hull speed, but the torque & slightly more speed developed in a CD22 with a 40 or 50 hp or 90 to 100 in a CD25 twin will give much more boat control vs a kicker in rougher sea conditions. I most certainly in 2007 would not have made the run from Juneau to Skagway on a kicker, like I did on the 40 hp twin, when having motor problems & my job depended on my returning home on time. In places like the Yukon River if the main is lost & a wrong channel is entered, the kicker will never make way against the current, whereas I found with the boat moderately loaded, the single 40 hp with a on the low end pitch prop, 6 mph could be maintained against a 6 mph current. As far as maneuverability with a single or twins it takes practice with either to become proficient & even more with twins. I still dock most of the time using just the one motor & the other in neutral & ready to use as a back up, should the one I’m using have problems. In very tight places even without counter rotating props, I’ve found the maneuverability to be enhanced with the twins. In fact there are several times without the twins, I likely would have made unwanted contact with other boats or obstacles.
For those who spend the majority of there time at planing speed & fishing or don’t tend to get to far out on a limb a single & kicker is most likely the better choice, the twins work best for me & if money wasn’t an obstacle in choice of future motor replacement, twin Tohatsu 60’s would be my first choice. They weigh 239 pounds apiece, which makes them a total of only 56 lbs heavier than my present twin Honda’s & the total 80 hp Honda’s on Yellowstone Lake only put out 61 hp due to the elevation. I can cruise at a max of 19 mph there, so with these twin 60’s set up, one would always have a spare that could plane the boat if needed. With the right pitched props, I think the same could be done with twin 100’s on a CD25.
I should add on the old pitch adjustable plastic pro pulse props, I’ve taken out individual blades, but never on both props at once & I have dinged up aluminum props, but only have ruined one. That was in 2016 on the Yukon River while going to shore. When I hit reverse a chunk of wood jammed in between a aluminum prop blade & the zinc directional anode. The anode came loose spun around & into the prop taken off all the blades.
Jay