My sense of taste tells me that if I don't take one or two priming hits before I press the button (with a cotton flavor wick), I get a dry hit and it tastes obnoxious.
With a silica flavor wick, I take a hit when I feel like it, no priming hits, and it tastes fine.
I do notice that when I have a cotton flavor wick, and I take those priming hits, the flavor is good, much clearer a taste, but it's a huge pain having to always remember those priming hits so I don't get a dry hit. It's also a pain having to change the stupid things so often so I don't get the burnt taste -- silica flavor wicks seem to stay just fine until the coil is so bad it needs dry-burning.
I have some silica wick on order, thought it would be here today but apparently FL's USPS is out taking in some rays instead of doing their jobs, so I hope it will be here tomorrow. I'll try replacing these flavor wicks with silica instead, and see if I actually do like it better.
Andria
I think you're compressing the cotton to plug holes to stop leaking; then it doesn't wick well.