Dear Djeickme: IMHO trying to discuss on an electronic audio item ( specially a phono stage ) that was designed more than 20 years ago is useless for say the least.
+++++ " "The main audible difference between the two phono preamplifiers was caused by noise". He admits that the Mod Squad is very slightly noisier with very low output MC cartridges... " ++++++
so the gain is not the only issue there are several along the noise.
Perhaps you think that that phono stage ( by the today phono stage standards ) is up to the task to really match the XV-1 or Urushi, fine with me.
+++++ " can only serve to mess up the info retrieved by the cartridge " +++++
here IMHO the tonearm and phono stage have a critical " job " because depend on which tonearm is the cartridge matched to the signal quality performance and depend too with which phono stage that cartridge signal must pass through. Remember that is in the phono stage where IMHO that cartridge signal can/could " suffer " a severe degradation due to it " heavy " process on the signal to achieve the right gain ( in many cases almost 10,000 times before could be amplified for the systems amplifier. ) and to conform according the RIAA eq.
One target in an analog audio system is ( regarding the cartridge signal ) add the less and loosing the less too, trying to preserve the cartridge signal integrity.
Anyway is your " call " and certainly you will do what makes you happy!, good.
Regards and enjoy the music.
Raul.