I received a email from Anthony DiOrio but I can’t cut and paste on this computer.
He said he is sending fresh supply of springs to his Oz distributor.
I think it’s just talking about the V2 here but misfires are not normally a spring problem but firing pin travel. The firing pin should travel between 0.165” and 0.170” and the trigger hanger have F for front R for rear on them and the holes are slotted so you can move them back and forward to get them in the right spot.
DiOrio Mfg still makes a action wrench and these can purchased direct from him or via his Oz distributor (he doesn’t name him) who I think is Sully.
PS my way of measuring FP travel is to use the end of calipers and use them like a depth gauge. Put the end of the calipers on the tang slide the shaft of the calipers down the raceway up to the rear of the FP take a measurement with the bolt cocked and then fire on a empty case take another measurement and you’ll be able to workout your FP travel.