ok i was at the track and i came off the track and the clutch was pressed down. not till the clutch was all the way pressed. i could pull the clutch back with my foot and it was fine but then did it again later in the day. seems to me like a air bubble, but is there something else it could be? if i replace it should i just do a OEM or should i look at something else?

 

flush the system, old/bad fluid could do it.