Finally got around to run my 2313, now I'm starting a shunting plank above my desk. It stopped every couple of decimeters, started again, but never ran smooth. Sound is great however.
I wanted to open it, to see what's wrong. Well, opening was not necessary, the screws from the keeperplate are missing. Since I never really ran it, it must have arrived like that. I had a spare screw laying around, enough for a temporary repair, and now it runs like a gem. Very happy with it, just need to source some screws.
I hope for a rerun some day, to get a stable mate.