bought a red plastic faceplate for my wifes cobalt (to match her red atomic mask, splits and B2 2nd stage: don't ask); I thought it would be easy to "pop off" the black cover and put the new red cover on, however it seems to be a little more snug than I anticipated; rather that force it, i'd like to know if there is a "secret" to easily removing/replacing the faceplate: any guidance would be appreciated: thanks