That "organic" label is nearly always 100% hype. All it means is that the plants weren't raised with petrochemical fertilizers or pesticides, which has zero to do with how it ends up tasting (even for food), and everything to do with how many suckers they can get to fork over big bucks.
I'm not yet at the point of rebuilding, but I have started to need to dry-burn coils when they get icked-up, so I have to replace the flavor wicks with *something*; I bought some of the Peaches & Cream 100% cotton yarn that was recommended by quite a few here, it's cheap at Walmart, and it provides superlative wicking for thin juices that tend to leak, AND it provides MUCH better and clearer taste. So much better taste (and wicking for my thin PG-based juice), that now, even with brand new coils, I open 'em up and toss out that flimsy little bit of silica and replace it with boiled 100% cotton P&C yarn. Improves taste immediately and stops leaks before they start.
Yes, there apparently is an issue with slower wicking, which can cause those nasty dry hits; that problem is mostly solved by taking a few puffs *before* pressing the fire button, to get the juice into the wick before you actually try to take a real hit. Seems to work terrifically.
Andria