What does Steve Vai’s call his two main guitars?

Guitarist Steve Vai calls his two top guitars Evo and Flo.

Evo is an Ibanez JEM7VWH produced in 1987 which Vai co-designed, it features an Alder body with Maple neck and Rosewood fretboard. Evo is Steve Vai’s main guitar which he uses both in the studio and on stage. Flo is Evo’s sister guitar.