Thanks for the response Doc
It is at the beginning playback with any tape, once it settles then it tracks true, I clean the heads and guides every 8 playing hours with the laser media cleaning system, so I am confidant that it is not a dirt problem, I was wondering if the the tension guide arm on the take up side is faulting, that is why I have been looking at your system, however if it is the tension arm then your system probably won't help as it does not change the arm (or will it help).
Don