Welcome to the kayfun Lite club. I've got 3 and they are pretty much in use 100% of the time. The only time I don't use them is when drip-testing new juices.
I use 28 micros and organic cotton yarn for my builds (cotton yarn boiled for 20 minutes) and can do a swap of the wick in a couple minutes. The yarn helps to keep the thickness of the wick consistent as opposed to cutting or ripping strips off cotton balls.
The KFL should have come with a clear tank section. Did it get damaged? Wondering why Shat would not have included it with your package?
Dusty, when you change the wick, how do you thread the new wick into the existing coil? Is that easy enough? Do you also use the figure 8 shaped wick with the KFL?