Do you use two mics for convenience of standing vs sitting, or for different e.q. for backup vs lead vocals?
I used two mics so I could you the VH on each keyboard. I tried using a stand alone VH with a unit called the Midi Merger but discovered that it doesn’t work the the Yamaha PSR 950.
Eventually I’d like to just use one KB, but I haven’t found a good solution. Most gigs I just use one keyboard but when there’s both lots of Mexican , tropical Latin and “American” , I use both keyboards.