I came close to ordering a roll-up version.
I was concerned that the tabs to stck out and into the bed to secure and latch the cover would be in the way or get beat up or reach out and grab me or my gear.
If you catch your leg or back on that, it will leave a mark and make you say bad words.
The panel type latches (at least on the F1) have clear side rails with nothing sticking out.
I will warn you about BAK Industries ... if you don;t purchase from an authorized dealer, there is no warranty.
You can save a couple hundred bucks by ordering through amazon or some other mail order house. But you will be on your own.
I had a latch issue and found that little nugget of information. It was an easy fix and cost a couple bux to do so at Home Depot.
During a decent rain, there is a trickle of water that leaks by when stationary. One channel on each side of the bed will be damp. It has to be a heavy, prolonged downpour for there to be any standing water. At speed, it isn't as bad.
Installation was easy.
As far as use, I've hauled one of these from Denton to near San Antonio (~300 miles) ...
https://www.allseasonsfeeders.com/ProductDi...84%a2_Broadcast