You're not gonna hurt anything by getting too much heat. The ceramic and SS can take much more than the coil can produce. I don't know if heating the juice on its way to the coil would gain you anything. It might cause the juice to wick easier to the coil giving a better vape. It might rob some of your wattage from the coil giving you a lesser vape. Hard to say really. As the temps drop, I notice my Ody does better after a couple of hits to warm the insides up, maybe the pre-heating would do some good in the winter. I might set one up like this for hunting season. Last year I kept my mod in a pocket with a disposable hand warmer.