What battle problem is 7-55 meant to solve?
7-55 uses 7 main contact points and a 55 height class. Lower setups generally expose less underside, while the complete Blade, Bit and launch determine the result.

Balance
Start with Clock Mirage 7-55 Under Needle; it is labelled as a reported tournament alternative with the note “20% of this Blade’s recent podium builds”. There is no second verified build yet, so do not invent one just to fill a deck.
7-55 uses 7 main contact points and a 55 height class. Lower setups generally expose less underside, while the complete Blade, Bit and launch determine the result.
7-55 does not appear in the 20 recent winning decks reviewed by BeyXBuild. That does not make it unusable; it means the site should not call it a tournament-proven staple yet.
7-55 uses 7 main contact points and a 55 height class. Lower setups generally expose less underside, while the complete Blade, Bit and launch determine the result.
Compare 7-55 directly with the 7-60 Ratchet in the same complete build. Run at least five launches per side and record knockouts, bursts, self-knockouts, scraping and spin finishes; change only this one part.
Drop it if it does not beat a specialist in any matchup your other two Beys leave open. Flexibility only matters when it covers a real deck weakness.