The Steelcore straps are hard to get super tight. I had them on my roof backet of the INTI and i had to stand up there and yank the crap out of them to get them tight enough. After a day on the road the cans would start rattling. I need to talk to Sam, i wasn't aware that they were coming out with a Ratchet type strap. That should solve all the previous problems.
This sounds exactly like what the "cinch" straps do, as there is no way to get them rattle proof tight. Like I stated it might be better to security cable the cans to the Roof rack.
