Microphone tails/connbox less XLR metal casing (lighter for boom use) - problems?

Hello all, quick question that I cannot seem to find any clear and cut info on; I'm thinking to remove the metal casing(s) from my my Rycote Connbox 3 and 4 XLR connectors (mic input stage - female) to reduce weight on a boom, might this cause a higher potential for RF noise being that the casing is no longer acting as the shield (is that right?).
I plan to keep the casing on the handle end (male) and thus all the way along to the recorder.

Also, might this be dependent upon the mics? I'm using a Sanken CSS-5 and am just about to acquire a Neumann KM-A + KK120 / KM184 Mid-Side rig

Any advice against?

Thanks!

Adam