Hi all, I'm going to order a new tube as a bday present to myself. Right now I'm looking at a 9mm US Tubes straight shooter with the 24mm joint. Anyone have any other recommendations around that price (~$300). I'm also considering a Toro bub with mini frothelator, but the 9mm glass is so tempting. Also, which downstem is smoother, the 7 arm diffuser or the showerhead?