I've had my JK for 2 weeks and want to practice dropping the top and getting it back up again. Need some honest imput: how long does it take to drop and when in a hurry, get it back up? Also, the instructions state to take out the side and back windows prior to dropping and even remove the window rails. True? Unlike the Mustang where I press a button, I want to be sure I'm going the right way with the JK top. Thanks in advance.