[petelanger]

I assume you are talking about the F-mini where you barre the high E and B strings. You are not alone my friend, this chord is extremely difficult to play. I attempt regularly to play it but only rarely do all strings ring cleanly. It comes down to a balancing act for me, getting the pressure on the 2 lowest strings just right while not muting any other strings at the same time.

For the challenges I will often cheat and focus on fretting the B and not worry about the high E at all while avoiding it while strumming it.