Finale Configuration too short for the tower?

Stupid question, probably searched for the wrong thing.

By my calculations, the entire tower (platform and all) is up to 105 inches, but my the rules, the finale configuration is only 90 inches tall.

How are we supposed to make up that 15 inches if we’re lifting from the floor?

No, the platform is 20 inches tall, but the ENTIRE tower(platform and hanging area) is 84 inches tall