I’ve been looking into getting a master cylinder but not sure which to go with. It looks like RCS15 - RCS19 are options however I’m not sure which one people normally go with. I have a 2022 Grom with completely stock brakes atm but I’m gonna be using a dual caliper bracket on the rear with p32 brembo calipers and a p34 on the front brakes and new lines. Possibly oversized rotors as well but I’m still figuring everything out. I would like to get a full master cylinder kit that includes a reservoir and adjuster. Would I also have to install everything at once or can I install the master cylinder and reservoir and use with my stock brakes until I get all new brakes?