when your driving along and accelerate the gear lever moves
back. let off it move forwards? it happens in all gears?
the gear change isnt as good a my mk2 valver (after i replaced the bushings)
im thing about replacing the one week old gearbox mount with a solid one.
but not sure if this is the problem.
i'd be interested in hearing about a cause, a I have exactly the same problem.
The gear stick kind of wobbles when your driving .. i think maybe low revs more so?
But yep, accelerate goes back and when you let off, it jumps forward a little (not out of gear though)
If you rest your hand on the gear stick whilst driving, you can feel the "chug" of the engine.
BTW : Mine's an 8v gti J reg