Contrary to the popular (and outright WRONG) belief that sub ohm requires more power, its wire gauge, final resistance and the number of coils that dictate how much power a build can handle.
The advice edyle is giving you is spot on. Both in his power recommendations and how to figure out how much power a build can handle through experimentation.
You're just trying to push way too much power to the coils you built, hot legs might make it worse, but no amount of airflow or wicking can overcome just how heavily 23W is overpowering a #26 .4 or .6 ohm single coil. For 23W with a #26 single coil, about 1 ohm would do it.