I have sent a letter to the manufacturers of Ventura soft luggage systems. (Dold Industries) in New Zealand. I've advised them to re-design the L brackets for the 2007 Triumph Tiger 1050, as they are hitting the hugger and causing it to fracture.
I ride two-up on the mid-range suspension setting. I was advised by e-mail to take the system off my Tiger until such time that the manufacturer gets back to me with an explanation.
In my view it might pay to hang around before you purchase the system for your Tiger until Ventura get it sorted.