60-volt Keling servos with 65-volt power supply....no go??

what's up my fellow CNC bro's?!

This should be quick:

I want to run Keling's 350oz. Nema23 servos for my X and Y on the X3 mill. Current setup is all steppers(Keling) with their 65VDC power supply and Keling drivers.. Works great, i just demand more speed and "stop on a dime" movement. I'm going with the Gecko 320X drivers for the new setup...

Should I drop down to Keling's 60-volt power supply for those servos? orrrr would I be pushing it with my current 65V? I knnoooooow someone's gonna say "daaahhhh it's only 5 volts"....but for realz.....yay or nay?

There is typically no need to tightly size servo voltage power supplies, as long as the drive can handle the DC voltage, motor rpm and current can be limited in the drive.
The common recommendation at minimum is motor voltage + 10% for P.S.
Al.