Once again, RYPN proves its value.

Don't you ever speak unkindly of it again!

Update. We got it out (30 January). I was not there. Another team that has done this before re-cut the removal wedge for better alignment. He said, "you have to hit it the right way".

For documentation (and for Becky Morgan's 'best practices' effort) - find out the details of how the wedge is cut "better", and precisely what 'he' means about the right way to hit it.

These details promise to be important in developing a /best practices' record for this very significant but probably underrated aspect.

The slot in the crosshead is not parallel. We failed to consider that in making the inserts. So the whole assembly was binding at first impact.

The slot follows the tapers of the pin. The better extraction tool aligns with this taper, but it is not perfect, as it was guessed at the moment. A new one needs to be made that correctly matches the angles so that there is no binding and impact blows are correctly translated into transverse motion against the piston rod.