which side is it easiest to drill from? the reflective side or the other side? i'm going to be using a hand drill and the thing in a vice gripper.
also, im warry of drilling holes near the edge, i feel like that owuld just increase midbass and not extension, since long wavelengths would pass through the whole thing anyway.
what kind of effect does the quarter cutting mod do? i kinda don't want to remove the foam because my hair and flakes come out more than i'd like and wouldn't want it in the drivers.
in addition, if it brings out more treble, i don't want it. ive heard mixed things about how foam affect sound, some say treble, some say mids/upper mids, perhaps it depends on the phone.