I also noticed with that table when I cue records or try to scratch the needle and tone arm move around a lot and usually pop out of the groove. the other table does not do this.
I've been experiencing this problem a lot recently. I bought new needles last year but the problem remains, when I cue the records the needle jumps out the groove and goes back to the start. Putting 5 p coins on top of the cartridge sorted the problem out but when I read on 313 about extra weight damaging records they came straight off! I've tried adjusting the weight & height of the tone arm but it doesn't help the problem. I put it down to the fact that I must have been sold some dodgy needles (they're the standard Stanton ones) & thought trying a different make might sort it out. Does anyone know what the problem might be? G.