I still prefer silica DZ. Have ordered some ekowool, but 2.5 mm - probably won't fit through the micro? Maybe sock it over the 1/16"?
I'm not sure what 2.5mm Ekowool is. Are the half sizes the ones that have a silica core? I have only used 1mm, 2mm, & 3mm. 2mm is definitely too thick for a micro. Remember the Ekowool sizes for their hollow sleeves are the internal diameter.
Sleeving it over the 1/16" may work but I've never tried that type of coil wick setup. I've only sleeved over SS mesh in a genny. The leads of the coil will make it tricky. You would have to bend one lead parallel with the coil, sleeve, then bend the lead back. You might get a lot of fraying before you are successful. Sounds like too much trouble.
Would you be kind enough to share a picture of your coil? I'm not a fan of cotton but a heavy user of Ekwool in my Reos. I typically just double up 2mm eko & use 4 wraps of 28 g kanthal. Always wanted to try a micro but using Eko for that is a PITA.
Also, I love the RBA you have in your profile pic. Who manufactures that?
I do love cotton, just don't use them in any of my Reos. I used to just wrap around 1mm Ekowool using a piece of .039" music wire inserted into the Ekowool cause I always though it would be impossible to thread Ekowool through a true micro. Until I decided to finally try one day & couldn't believe that I was holding back for so long. I can thread 1mm Ekowool through a 1/16" ID coil pretty easily. I also make coils with a .055" ID, getting 1mm Ekowool through that is a bit trickier but not that hard to the point where I wouldn't bother with it. But the .055" ID is borderline choking the Ekowool.
The RBA currently in my profile pic is a blackened RM2.
These are all 1mm Ekowool & 1/16" ID micros
(Excuse the gunk, been vaping this for a while...)