Soundproofing Custom Cut Door Sweep for Doors with 20" to 40" Widths - 40"

I guess it's great if your floor is perfectly level. Not so great otherwise (my case).The rubber is pretty firm and maintains its shape. As my floor is not perfectly flat in the door swing area (due to the difference in the hardwood planks and I guess some subfloor unevenness), I was left with two equally bad options:a) mount it for the highest floor point, leaving a gap under the door when it's closed (but enjoy a smooth swing);b) mount it so there is no gap when the door is closed, but scrape the floor with the rubber when opening the door (making the door stuck).Overall disappointing. I'll be looking for another swing that can compress and maintain the gap.