Door weather strippinig

I was going to order some new weather strips for the driver door due to it tearing at the bottom, like most do.
I see there are 2 different ones to choose from. One I guess is a Ford direct fit for like $80 and then they have a different one that looks like you have to cut to fit for like $15?
May be a dumb question? Has anyone used the cut to fit, or should I not waste my time with it?
 
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