You can use the slider to change the distance between the rings, however the smaller the distance between the rings, the slower the tube will go. I personally like the slider set to 1 the most and the slider set to 50 the least. At 50 it makes it seem like there are two tubes. You can also use the size slider to change the size of the tube and it will gradually change the size while creating stamps, creating a nice cylinder affect. You will have to hold your mouse down for it to stamp.
I would not recommend turbo mode (Press the shift key and click on the green flag). It's not quite as satisfying on turbo mode. YOU HAVE TO HOLD YOUR MOUSE DOWN FOR IT TO STAMP!