Some help/input

Typically, RPV's are not included in MC's anymore. You normally can see it through the rear brake pressure port at the MC. It's just under the removable seat.

Pump the brakes up until you get a pedal then very firmly push down and hold it. It should be rock hard and remain there indefinitely. If you feel it gradually recede then you could have a leak. It's either going to be somewhere in the system or you have a bad MC.