So after a couple of days using Ghost Bond... I can be more accurate.

Ok, it has one con, and I really hate it.
Basically, I'm having my forehead gettin dirty every 4 hours. I have to clean it all the time. I dunno why, it very rarely ever happened with Ultrahold. I only used to clean it every once in a 4 days (maybe). But Ghost Bond seems to seep down a lot quicker than Ultrahold (being water based rather than acrylic maybe), so yeah, this is a big downside to Ghost Bond. Can't reveal your forehead much. First 1 hour of attachment it looks perfect, but then again, it seeps down.

I'm thinkin of using it on the sides, and keep using Ultrahold for the front bit. :/ dammit.

Ultrahold wins.

stats:
Stronger bond, No messy forehead (sort of).