HI Melissa
Its not true to say the “digital is always at unity gain” but generally this would usually be true. Professional grade vtrs do allow manipulation of in out levels on digital passes, but in my experience operators keep this on presets and adjust later.
This way, if its distorted on tape, the distortion will not be increased by any latter clipping by incorrect level adjustment. Lessening the output would not decrease any distortion (although i realise that distortion isnt your problem) as once clipping has occurred then all of the 000 and 111 in the digital datastream have become 1111 and clip has already occurred.
Like a ming vase dropped down stairs – a tube of superglue will fix the vase but never regain its lost value.
Peter
NB What are you editing in? Camnt you compensate / mix there