don't arbitrarily assign hpf's
listen to them
move that curve where your ears and monitors tell you they need to be
can't trust your monitors/room?
gotta fix that first
100 is not low enough for most tracks
if something sounds boomy, and is put with something else that sounds boomy, it's gonna be boomy when they are all together
focus on masking
don't do a lot of solo'ing of tracks, that does not matter.
what matters is the mix
at least listen in 'clusters' of tracks, to find the buildups
think of carving frequencies out of certain tracks to allow places for other tracks to sit
but be very critical about moving the low end of the bass guitar and kick drum around, so they do not sit on top of each other.
does not matter which goes high, or which goes low, only that they are different