By pin picking i can only set the 1st pin.
Jason: The 1st pin, the one you can set, is a straight pin. The other 4 are spool pins. Read up on how to deal with spool pins. Basically, use the pressure you apply upwards on each spool pin to rotate the cylinder against the direction in which you are applying turning torque with your tension wrench. I'm sure someone's pointed out to you a link to an animation of this already before.
If you do this then the 65/50 is a reasonably easy pick.