have used every mesh to date. the first mesh i used was 325, i had tried it with various center hole configurations, but never with no hole. i then went on to 400, and also had tried it with different size center holes as well. also tried 270 mesh with the same configurations, but with all those different meshes i had never tried to roll a completely solid,no hole wick. when the 500 mesh hit, what caught my attension was that people were saying you could roll it with no center hole at all. so when i had tried this it seemed to work well. i have been doing this for some time. funny enough i had never tried the 500 with any type of center hole until last night. i still rolled it tight but with a paperclip size center hole. wow, the difference is noticable in taste especially, and maybe a little in wicking. for the DID i still am using about 4 inches in width, but for a fat wick that i roll, its not that super tight. so if you are messing around with the 500 and have been rolling a no hole wick, give this a try. also for those that are still trying out different wicks, let us that have been doing this for a while state our wick configurations..... me, 500/ solid, very small hole/ 4-3/8 width, in a DID atty, 4/5 wrap, 1 ohm, 28g. @3.4volts. maybe this info from various people can help out others.
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