PID default are set for most of case user can hover.
This default can't matches all frames size.
Attached numbers for a DJI450 frame, 4s and 8*4.5 pros... pretty close to defaults.
You can use the EasyTune feature or the OPTune but need at least one knob in your radio.
1 Revo ( or Revolution as BangGood call it)
That the contrary, the "Revo" doesn't exist... Chinese invention.