Having trouble aligning floor textures

[rain206]

I am trying to make sneaker pads in my kart course, but when I add them in as sectors sized 128x128 and set the floor texture to be the 128x128 pixel sneaker pad texture, it ends up horribly misaligned. I am aware of the hotkeys and methods of aligning textures on sidedefs but I have had no luck applying that to floor textures. Am I going about this process in a completely wrong way or am I missing something obvious like a hotkey? I have looked around on guides and have found nothing for what I am looking for. Any help would be greatly appreciated.

 

[SeventhSentinel]

Apply the Sector Flat Alignment special to one side of your speed pads.