Those are some big air holes drilled in some of the videos. Mine are much smaller; I'm happy with using a #58 bit (a search says that's a 1.05mm bit).
I've now modded 3 of my tanks. 2 are running SS Genesis style as we've seen in the videos. I took a 3rd one, closed up the post air holes top & bottom, drilled out the factory wick holes to accept a 3mm silica wick, and drilled the tank air hole. Running the silica larger wick with a 6 wrap 1.8 ohm coil, it is super nice. I'd highly suggest this mod to someone that doesn't want to mess with SS wicks.
Also now batting 100% with the tank posts coming out from either the base or the top plate. I've sure gotten handy with a solder gun and JB Weld lately!
I've now modded 3 of my tanks. 2 are running SS Genesis style as we've seen in the videos. I took a 3rd one, closed up the post air holes top & bottom, drilled out the factory wick holes to accept a 3mm silica wick, and drilled the tank air hole. Running the silica larger wick with a 6 wrap 1.8 ohm coil, it is super nice. I'd highly suggest this mod to someone that doesn't want to mess with SS wicks.
Also now batting 100% with the tank posts coming out from either the base or the top plate. I've sure gotten handy with a solder gun and JB Weld lately!