Hello, Good work... Although the length of the curtain cap area decreases in the upper floors, there is no decrease in the headboard reinforcement. If we talk about the P2 curtain, the hood area, which is 63 cm on the basement ground and 1st floor, decreases to 31.5 cm from the 2nd floor. But the head reinforcement does not decrease. Shouldn't it decrease after the critical curtain height? I would appreciate it if you could explain why this is so.