I`m considering Roll N Lock over the Mountain Top as there is a video on the mountain top that shows due to the rubber hinge design its very easy to break into!
Up to now my vote is with Roll N Lock knowing its not 100% water proof. For the application I like to use it I don`t need it to be 100% water proof anyway as long as the tub does not flood and leaks from tail gate corners...I`m happy.
Here is the mountain top video:
https://www.youtube.com/watch?v=u4ZlB9Y8W_Agot in touch with the Mountain Top and they are aware of the issue and are working to improve it but not corrected yet so the available model in the market still has the issue.
Roll N Lock is manufacturing a new model to suite the Gen 8 Hilux and will be out very soon.