geeeeeeez...it all depends!
sure..sometimes a low cut at 25Hz is totally ok!
the point is to let either the kick or the bassline be the one to rumble. not both
(at least not in the same frequency)
it's so important the way the bassline is played (on note with kickdrum or not etc.), if a sidechain is necessary or not, what type of kick and bassline....
use ears and don't let bass & kick fight each other!
p.s. i would NEVER HP my kick at 80Hz...ridicolous! it's still a "kick" after all.
to suggest to let the bassline ONLY BE ABOVE 120Hz is not good either...
don't always completely seperate at a certain border. there's also free space(s) inbetween, let's say 30 and 150Hz that can be used by either one or the other...find them and boost/cut wisely.
oh and in my experience, these subbass problems (in case the bassline is really deep) is very often somewhere between 40-70Hz. maybe cut a little bit with a BELL EQ (no need to completely cut everything below with a HP filter)
cheers
miro