I started out on EMs and figured them out pretty good ( which I enjoyed). I then got one early SS and it didn't seem too bad but when I look at all of the SS troubleshooting stuff the thing that intimidates me the most is having to deal with those connectors. It just seems like such a pain to have to change out the pins on all those connectors because they get burnt. Kind of a tedious crimping or soldering job that I don't particularly look forward to doing.Working with the boards and troubleshooting it doesn't seem to be too bad. I can figure out the logic by reading the manual and asking questions at pinside. Of course working on the play field and adjusting things like rollover switches etc is just basically the same.