Some drum companies make 18" depths on 16" or 18" drums to compensate for the higher tone of the smaller drum. But if you want a low tone, you have to start at a 20". I don't care what you do to a 10" tom it will not sound like a 14" or a 16" BD sounding like a 24".22 or 24 are all I've ever owned. I THINK I could live with a 20, but anything smaller is just too cute! I've played on a Tama bop kit with a 16" BD. Sounded fine, but I felt as if I was at the "fun house" of some amusement part, where mirrors distort everything. May massive 160 pound frame looked like I was playing a 3rd grader's drums. I was pretty impressed with a 20" Stage Custom I played too. I don't know, I just like 22s for size/proportion.