The iStick Mini tops out at 10W and it's a bit low on power for that particular head, but it'll work just fine at that power level, if a little weak. You're right at the lower resistance threshold for the battery, so don't try the 0.5 ohm coils... they won't fire at all. If you want a bit more oomph, consider the Mini iStick 20W... it looks identical, offers actual wattage regulation, and caps out at 20 watts. Probably more suited to the 1.0 ohm CL coils that tank uses. It still won't handle the 0.5 ohm coils, though.