tricopter propellers

Hi, I'm new to multirotors - flying a Hubsan X4 FPV and Dromida Ominus FPV for the last few months. I wanted to build something and bought a Titan tricopter kit. My build will user 16" carbon fiber arms with poplar inserts adhered to the inside of the tubes with Gorilla Glue, a KK2.1 flight...