The Tonneau Master rolling cover didn't fit the bedliner's bulk header, wrap over very well. There is a slot in the rails to fit over the liner's bulk header wrap over but the slot wasn't deep enough. My factory drop-in bedliner's bulk header,wrap over extends a little over a 1/4" deeper in the bed, toward the tailgate. Because of this, the rails need to sit on top of the liner's bulk header, wrap over which leaves an open hole on the rail corner's side and an open slot in the front of the rail corner. With no bedliner, this would be considered normal and Sport Master supplies a black caulking just to close these open holes. Unfortunately my installer didn't use the caulk and later stated none was sent.
The good news is that Sport Master responded immediately within 12 hours for each of my 3 emails. They are sending me the caulking and more foam (for the fronts). Even with these holes, the water leakage is very minimal. I just want a dry bed that would had been accomplished if the material would had been installed with the cover, as it should had been. Otherwise, there's no water leakage anywhere! Just in the holes I knew would leak because of the lack of caulking. I'm very happy with this cover and I would state, it's very easy to install. While I foolishly paid $25 to have it installed, I've taken it off to realign the rails that weren't lined up 'perfectly' in the install. I'm a bit anal, but it now is as perfect as it can be. I've even bought trailseal tailgate gasket but no water has even leaked in through that area. Seems water follows the inside of the tailgate and drains through the drain holes under the tailgate. No water in the bed from anywhere in that area even during hard rains. I'll use the seal anyhow to keep dust out and even water that may be blown in from a severe thunderstorm.
So the Tonneau Master cover is water tight when installed properly, with the proper materials. For the money, I felt it was a bit more quality with the stitched corners and double locking levers, one on each rail.
It's not as theft proof as I would had hoped. It can be opened rather quickly, with the tailgate locked, if one has knowledge of the workings. The velcro can be opened on each side, COMPLETELY, and an arm would fit in to unlock each side. It's hard, but can be done. For ~$400, the convenience to open your bed completely at
any time, beats any hard lid or cap which needs to be taken off with prior knowledge of the haul.
The Weathflectors were VERY, VERY easy to install. I just don't understand how many had a difficult time. You simply stick the vertical edge, near the mirror, in first. Make sure the vertical edge is resting on the dew edge and grasp that vertical edge and bow the flector outward, a way from the truck, and slide the rear corner of the flector into the vertical slot of the window track but leaving 1/2" from the flector 'lip' to the top of the window slot.
Then starting at the front edge, start pulling down and working the flector into the slot. Make sure to keep the flector from rubbing on the window's top metal edge and damaging your paint. It's very easy to keep this from happening, just pay attention.
Once it's installed, make sure it's seated properly and then raise your window "SLOWLY", paying special attention when the window contacts the rear corner of the flector. It will pop but you can take the stress out by gently pushing the flector to allow the window to slide next to it. You need to inch(1/4" to 1/2") the window up so you don't pinch your fingers. This was the fronts.
The back windows were a snap, they have tape to hold them in until they setup from the pressure fit. The fronts didn't need tape as the front vertical edge helped hold them in place until they pressure fitted. With the backs, you remove the tape and slide the rear corner of the flector in place and then wedge the front corner in. The flector really just slides right into place hence the need for the tape to hold it intially. Again, when raising your windows, do it slowly, and the same way as was done on the fronts. 1/2" by 1/2" and pushing the flector outward to help the window slide next to it keeps stress down and avoids a possible cracked flector.
For both front and rear windows, you need to raise and lower your windows at least 5 times to set the windows and then leave the windows up for 24 hours so that the flectors setup.
By no means am I telling anyone to use my method to install the flectors, only describing how I did the install and the cautions I took. Read Weatherflector's manual on how to install the proper way to avoid damage to flector, truck, and body.
Have a good one and hope you find this informational.
