Opinions!

[stoner]

Looking to possibly down size my tow vehicle. I'm pulling a 18"6" bass boat with a dry weight of 1390 lbs. with a 200 Merc and surge brakes on the trailor. Been looking at the GMC Canyons, which should have plenty of power to pull, but my concern would be, will it stop me! What do you fellas think?

I have a 19' rig I have pulled it with a Tacoma and a Trailblazer. The Tacoma does a much better job in the handling department. The Trailblazer is better on the interstate, but don't make any sudden moves; you'll be sucking up the seat, it does get squirly at the higher speeds.
Your surge brakes will help you with the slowing the rig to a stop even with out the added weight of a bigger truck.
Stoner

[watsondsp]

I would go with a larger truck. I own a GMC Canyon with the I-5 and pull a Nitro 700 with it. That is all the truck wants. Also, I only get somewhere around 11 mpg when pulling the boat.

[Cobra190]

Thanks fellas, I knew if I threw this out on this site, I would get some needed imput and have decided to stay away from the mid-size market.