I am looking for a new cartomizer, I have used the 1.5 dual coils and kanger 2.0 horizontal. I only have ego batteries right now (looking for a cheap upgrade). The dual coils kill the ego batteries fast and just dont do it for me anymore. I really like the kangers but have been thinking of the 1.7 smoktech as a good middle ground...whats everyones thoughts on these with an ego battery.