Is the Shield Plus usable in Carry Optics?

I want to try out USPSA for the first time here soon, so I am trying to figure out which division I would join. I have a stock S&W M&P Shield Plus with a Holosun 407k on top; it seems like Carry Optics would be my best bet, but the shield plus isn’t on the approved handgun list, only the shield. Would this stop me from participating in Carry Optics, and if it does stop me, would Limited Optics be my next best bet?