One more thing, I noticed if I rolled 2 dice together, say 2 d20s, they'd get stuck more often then just the 1 rolled. Standard Chessex size dice.

Nice, simple dice tower design. I noticed in my last gaming session, that the dice tend to fall straight down the middle, barely hitting the shelves, but I will admit it doesn't rattle as loud as some dice towers I've printed out. Anther issue I had was sometimes the dice would stick at the bottom (behind the gate), I'm not sure if it's due to the trajectory or maybe a slightly bigger opening? I had to tap the top to release the die into the tray (love the tray btw). Love the design thou.