If you're just using this in a hotel room, you probably don't care. But what if you're staying in someone's guest bedroom or with family or some other scenario where putting a lock on your door might be construed as rude or insulting?So you need the lock because you're planning on doing some incredibly embarrassing things behind that door, but you don't want anyone to know you have a lock because they'll think you're implicitly accusing them of being thieves. But if they find out the hard way, that's fine because they shouldn't have been barging into your room, so the necessity of the lock was just validated.In such scenarios, the big red arrowhead-looking lock isn't going to work because it is ridiculously loud no matter what you do. It's in the way that the metal slide is loose in its track and scrapes against the track and the metal plate behind it making an impressive racket. The solution is not to use that lock and instead use the much smaller, simpler, and quieter one that the kit includes.After having used the smaller lock daily for a week now, I don't really understand why the other was even developed. The only advantage that I can see it having is if there's a major disparity between the door surface and the surface of the molding. But it would have to be really severe. The small lock works fine with a standard 1/4" to 1/2" discrepancy. You would have to have 1" plus of difference before the small lock might not work. I don't believe I've ever seen a door like that, not in a residential home anyway. Maybe a bank vault. But then you're in a bank vault so you probably don't need this!
