Hi there im thinking of getting this for my sup boards and just andering if anyone else has used them. I have a couple of questions that someone my be able to help me with.
1) do they make any noise or hum / rattle at all, either when they are on your car roof loaded or unloaded with boards.
2) As i sometime carry two boards, does the 2 board system allow me to securely lock in just 1 sup board, as well as 2?
3) Does the 50cm system adjust tp be able to fit a 30" sup board or do you need to go the 65cm
4) If i got only the single system can i fit another board just strapped next to it on the car roof.

thanks hope that makes sense
cheers for your help