I see, can you please tell me what does PO stand for?You can tap the pins out with a punch iirc.
This sort of thing is quite common with campagnolo, but shimano offered a better range of component compatibility so rarely needed customising.
It would be worth comparing xt&lx cages to see whether the po was trying to modify to his advantage.
I figured it out if im right, previous owner?I see, can you please tell me what does PO stand for?