Which track cover to use

A quick learner from canyon lake Texas says:
I watched one of your Youtube videos about covering a worn track on a sliding patio door. In the video the gentleman showed two different track covers. The first was larger and used two screws to hold it in place. The second was smaller and didn't use screws. What determines which track cover I should use and why does the larger use screws and the smaller not? Do you have local dealers in this area (Canyon Lake is near New Braunfels Texas north of San Antonio)? Please advise I'm about to throw my back out trying to open this door!

Thanks Wade
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Dave Sr. from SWISCO responded:
Hey, Wade. Which track cover you want to use depends on your track height. See if you have enough clearance for the 80-100. Personally, I use screws on both. It's a matter of preference.
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