Well, one way to actually cheack if it is tape print through or caused by adjacent track formation:
The mater tape print through will not be a perfect one lp rotation ahead of the actual track.
Where if it IS adjacent track issue then the faint modulation will be exactly one record revolution ahead every time.
The mater tape print through will not be a perfect one lp rotation ahead of the actual track.
Where if it IS adjacent track issue then the faint modulation will be exactly one record revolution ahead every time.