I think that the premium rubbers and the rubbish target foam accounted for 80 per cent of it. Just replacing the post rubbers that shielded the phone scoop made a huge difference. My game only had a few premium rubbers in it, they all caused problems
Putting slightly smaller and softer post rubbers on the SIM card hole significantly improves the thing. Twilight zone has a dodgy lock arrangement, on some games 50 per cent will get rejected. Paragon has a bad shot to extra ball saucer, maybe 50 per cent of shots fail, even for Bowen. So pinball machines have always had niggles like this. And no amount of work can get rid of all of them
The premium rubbers look nice, but imho just do not work as well on games as the softer originals. In have tried premiums in scared stiff and fathom. I do not get on with them.
The stand-up targets on Dialed in are slightly shorter than Williams ones. My most offensive target was on the right of the theatre. I replaced it with a 30 year old one from the freestyle area of my banzai run !
They are all just minor points, but were enough to give me multiple air balls in a single game. And really disappoint me.
When you buy a used game from a knowledgeable guy, they have sorted all this for you. Or if you buy a used game from an idiot you have to do it all yourself.
I think that my Dialed in seems fundamentally well designed and engineered. JJP is reacting to the faults that owners experience - like the hole protectors, the cover for the left flipper feed from the ramp etc. But JJP lacks the vigorous on site testing that used to happen before mass production started and I think it lacks experienced quality control staff that actually play pinball themselves. Whoever signed my game off simply did not understand the difference between a game that works and a game that plays sweetly. Even my flipper plunger was catching on the autoshooter so you could not get the skill shot.
Whoever signed my game off probably does not even know what a skill shot is. Anyone on here who had plunged the ball half a dozen balls trying to score the skill shot would have spotted this.