i have three choices
i need a new vocal mic
just all around vocal mic, form a to z

my choices are:

1. mod my r77 that i already have
2. get a sm7b
3. or get a cad e100s

now with the r77 that i already have, i think it sounds alright but I'm pretty sure a mod would make it sound better, i am using a fethead booster to use it with my onboard phantom power, so i could mod the r77 and maybe or maybe not get a better preamp

with the smm7b, i know it sounds good on vocals already, but i would definetly probably get a new preamp for that too since i know it needs lots of gain, or maybe the fethead would be enough?

or the cad e100s, which i particularly like because of how quiet it is, which i really am leaning towards because my singer sings very soft

since my singer has a soft voice, i'll obviously be needing tons of gain, so i need something that i can crank up without being noisy

pretty much i need the cleanest recording i can get

but I'm not sure which route i should take

any feedback?