ANA SFC card – Is there any benefit from starting as Diamond vs Platinum status after the status expires?

Thank you in advance for your help! I couldn’t find an answer to this elsewhere, so I am hoping those with the SFC might know.

Is there any advantage to enrolling in the SFC as Diamond compared to starting as Platinum (assuming the Diamond/Platinum expires)?

I am about to hit Platinum and will apply for the SFC card. But with my work travel schedule I can reach Diamond if I add in some additional personal flights. The flights would purely be to reach Diamond, so they are pointless otherwise. I am only interested in this if I will retain the Diamond benefits with the SFC card. I am unclear on if the SFC lets you retain your status, or if there is a separate SFC status.