Well I soldered on the new plugs last night and finally go to play a game.
The ball trough switch needed cleaning but everything else worked fine
I must say I like the roto-target, I think it's a cool feature.
I still need to service the flippers and give the playfield the usual service but other than that it played great and some of the shots are not that easy.
For my first EM I think I have been luck and fully tuned it will be a fun game.