The two prop rods are pretty solid. Yes, you can drive normal freeway speeds with it propped up. I have done it, the only negative is there’s a very noticeable amount of additional wind noise at highway speeds.
I knew I wanted a lo pro hard tri fold, I think they look the best, they don’t take up bed space like a hard roll up, and they are really easy to totally remove when needed.
I had it narrowed down to the Ultraflex and the bakflip MX4. I chose the Undercover over the bakflip because the under cover props straight up when fully open and does not rest against the cab like the MX4. Also, the forward most portion of the cover ( the section that does not fold) is narrower on the undercover so you have more of the bed open when the cover is fully open.
I think the MX4 is a better looking cover though. The fit and finish doesn’t look as cheap. The rubber trim pieces/seals that run on top of the bed rails were really disappointing looking on the undercover and the factory cut the ends like crap, one side was way short. I had to request a new one so at least the CS is good.