You will get there dude, I've worked on some pretty weird niche things... Alot of rare stuff aswell to be honest, those in all fairness are the best jobs usually as they also come with the unknown of how do they work etc etc. You will get there though. Especially now your offering services.

I like to play every customer console for a good period of time before I send it back, especially more modern stuff a good couple of heat cycles just to make sure nothing weird goes on, that's where most of my gameplay comes from nowadays, testing other people's consoles ha!

wellllllllll its abit more difficult on ps2 as what am i testing...if its a retro gem then gran turismo 4....if its the laser then its black disc ps1/blue disc ps2/any normal dvd game/a dvd9 game like gow 2.