I drilled one out to 3/32 and noticed a pretty big difference too....
BUT....
its not what they're designed for. KFL's, Russians and the like are tank systems that are an obvious improvement over pro tanks and other clearos. They're not drippers. Trying to get them to perform like a sub ohm dripper is fruitless. They can't possibly wick fast enough nor can they provide sufficient airflow for super low builds. They vape warm with standard builds. It is fun to see what we can get out of them but I've found the flavor and performance to be the best with a .9-1.4 ohm coil and cotton on a regulated mod.
BUT....
its not what they're designed for. KFL's, Russians and the like are tank systems that are an obvious improvement over pro tanks and other clearos. They're not drippers. Trying to get them to perform like a sub ohm dripper is fruitless. They can't possibly wick fast enough nor can they provide sufficient airflow for super low builds. They vape warm with standard builds. It is fun to see what we can get out of them but I've found the flavor and performance to be the best with a .9-1.4 ohm coil and cotton on a regulated mod.