Alan asked me these questions in a private message, but I thought I'd also share them here for anyone else that might appreciate the data. Also, forgot to mention in my PM reply, that I also run a Permatrim on the motor, if that matters. Last summer while cruising the Inside Passage at displacement speeds (5-6mph), my fuel usage was 5-6 mpg. On plane heavy it was anywhere between 2 and 3. (Closer to 3 when the fuel tanks were closer to empty...Might also have been on the lower end due to barnacles on the hull. No bottom paint....) I was running the 3 blade prop then. (Otherwise I tend to run the 4 blade.) Normal on plane numbers for around here seems to average out to around 3.1 or 3.2 mpg. This is for Midnight Flyer, a 2007 CD-22 Cruiser, with a Mercury 115HP EFI 4-Stroke. (Note, my typical cruise or on plane speeds are either 16mph or 21mph. My top speed at normal light weights is around 32mph.)
What year is it ? 2007
How many hours have you got on it? 1,400. Purchased with 50 hours.
Has it been reliable ? Mostly. I did have a fuse link wire replaced soon after purchasing the boat used. I believe it was due to new battery's being installed with reversed polarity by the previous owner's shop (Sears) just prior to my purchasing. (The batteries were correct when I bought it, but my mechanic said reversing polarity would blow that fuse cable. Since the previous owner had just had new batteries installed for the sale, that seemed to be the most obvious case.)
At 259 hours I had to replace a pressure regulator vent line that runs through the fuel module. The shop I purchased the new vent line told me it was probably due to running fuel with 10% ethanol. However, the 2007 was suppose to support 10% ethanated fuel, so who knows. I replaced that myself and have not had a problem since. I still run ethanol during the summer, and only put non-ethanol premium in it towards the end of the boating season. Only other repair was replacing one of the pencil coils at 204 hours. Otherwise I perform annual maintenance on it, usually replacing the spark plugs, changing the oils, and replacing the air filter, up till last year when the new filters became more of just a screen. And of course also changing out the fuel and oil filters. I change the water pump every other or third year.
Is it the Command Thrust ? Not sure. The serial number is 1B500809.
What prop diameter/pitch are you using ? Quick Silver Black Diamond 3 blade, 14 x 11. And also Solas Rubex 4 blade, 13.25 x 13. Both aluminum. I tend to usually run the 4 blade. Seems to give me better hole shot and control. Both props appear to be pretty well matched for specs in reaching WOT.
Your general thoughts about it? I've been happy with it. Easy to find service and parts, especially here at home, with the manufacturer headquarters 80 miles east of here.

I do tend to run at 100-200 hours a year. This past summer I placed about 400 on it with my cruise on the Inside Passage of SE Alaska, along with more local boating. I tend to run at planning speeds, but much of my Alaska cruise was at displacement speeds. I've also done some trolling. For usual cruising, I tend to run at about 4500 RPM I believe. IOW, it's pretty much ran at all RPM.s Everything still seems to run well on it. I have thought about what I would repower with when the time comes. I tend to think the 115 is a bit of overkill, and think a 90 would do fine. However, unless the 90 weighs a decent amount less, I'd probably just go with another Merc 115. Running high speed on the Mississippi River with some other boats during C Brat Gatherings, while I tend to be the fastest boat, I don't really pull that much more ahead of those running 90's. I've been happy with a single as opposed to twins, but I also have a 6hp Kicker. The boat came with a single, so that's what I have. No regrets.