I seem to be unable to remove my Carbon seat post. I want to be able to do it without braking the tube. at this point, I have applied manual force. I wanted to change my seat post because the rail clamp grooves are beyond functionality. I have initiated a restoration/resuscitation project in order to share my success or failure but in the meantime, the seatpost has to go although unable to remove. At this point, I have even created a tool to open up the frame's seatpost hole but still...to no avail. Any suggestions?