Regarding the ignition problem with all tanfoglio are the following through my own experience
1) Primers need to be seated deep , (this is main problem )
2) Firing pin block safety touching the firing pin itself (try removing the fps and see if you have any light strikes if yes it's problem no1)
3) Light springs with hard primers
With 15lb springs hammer it should pop every hard primer so before spending money buying stuff you dont need just do these steps
I shoot a stock 2 for 5 years with factory parts, no extreme, no domina and trigger is super fine everytime, but mostly rule 1 applies