I've tried it both ways with the Taifun GS and prefer the mesh. Rather than the fiber wicks going up through the holes, the wick is laid down on the deck as with any other type dripper. Then two little mesh tubes are inserted through the holes until they touch the fiber wick bed below. They are simply little 'feeder' tubes that transfer the liquid from the tank area down to the wick area. Seems complicated, but it actually is very simple and efficient. The mesh 'feeder tubes' last a long time and can be reused over and over; the coil is around the fiber wick, not around the mesh.
Tank filling is also very simple and clean. Just hold it upside down, unscrew the tank from the 'wick and feeder' section, fill the tank, screw it back on, turn it back upright and vape. I never get dry hits, and never get leaking.