Post date: Jun 28, 2014 12:16:10 AM
Paul, VK6WZ told us about his adventures with a Flower Pot Antenna. He advised us that winding the coils at the bottom loosely affected the SWR. Experiment for yourself.
Here's a detailed design from VK2ZOI:
http://vk2zoi.com/articles/half-wave-flower-pot/