I am getting a new set of drums and it comes with 12 13 14 rack toms and a 16 floor tom. it is a discontinued finish and I cant find a 18" floor tom anywhere but did find a 14". Why would you want a 14 floor tom and a 14 rack tom? I realize it would be a deeper tone because of depth but really would there be much difference? BTW I am getting a 8 and 10 rack tom but just don't know about the floor tom.