"Mike Taylor" wrote in
:

If your bow and stern lines are good and you spread them to the 4
corners of the car, then add some foam on the roof to stop the boat
from getting scratched by the car, it will work just fine. 4 lines to
the corners and the boat isn't going anywhere. I used pool noodles cut
in half lengthwise to make two D-shaped racks across the car. The
disadvantage is that when you take the boat off, your racks go blowing
across the parking lot....

Two words....duct tape.

This system worked for me until I found $99
universal racks at Canadian Tire. I added foam pipe insulation to
protect the boats and stop them from slipping. I had to strap them
through the inside of the car, cos I didn't want to make holes in the
car. No problem except in heavy rain.

Tell me about it. When I did the trip from upstate NY to North Carolina it
rained almost all the way there and after only about 30 miles into the trip
the water started to drip off the strap right onto my shoulder.