Are you ever going to restock this item. I have purchased probably 10 or 15 of these units. And because they fail so much and not being able to find stock I am stuck with lots of coils and several tanks. I have searched online and no one has stock. Was this item discontinued? I also question availability of the Innokin TC 100 mon. I am stuck with tons of coils and tanks. Any info would be appreciated. Thanks in advance.