So, got another 98c to repair to have as a spare in case a friend wants to join me for a walkon.
When it fires it will do the usual rapidfire for a second or so then it will latch again. I have torn it down, cleaned, oiled and checked O-rings and doesn't seem to help. I've popped gun oil into the ASA and fired through also which hasn't helped.
I'm thinking worn sear? I have another working 98 i can swap parts out on to test but wanna see other peoples opinions first