i dont know what the general consensus will say but heres my answers.....
i use a 10db pad on my Marshall MXLv67 going into my Delta DMP2 preamp because without it, the signal is so hot that i cant turn the preamp up into the "sweet spot".....
low cut , i do not use at all...if the source you are recording is picking up content in that low area that you dont need, it would be the time to use it........