Man, Ive got a lot to learn. I been vaping on my mvp 1.0 for around 2.5-3 yrs. Ive only changed wick & ?built in? coil once. The tank I bought after the mvp. It came with some extras, 2 or 3 replacement coil & wicks. The wicks seem awfully thick but pictures can be deceiving. I changed them out a few months ago. Ive never burnt thru a wick or had a coil burn out. I inadvertently hit on it when its burned up the juice with no problems except maybe burn taste. I think Ive got a 3 ml or whatever tank, its been so long I cant remember. I put about 15-20 drops in it to top off. I found it, VMNova. Its never giving me any kind of problem, been exceptionally durable. I just cleaned it for, well lets just say its been a long, long time. No suprise it was nasty, taste burnt, browned my juice, gross etc...etc. So from what Im reading My My, hey hey, coils dont die, they just fade away?! Cleaning it all up with q-tips really brought it back to life. I didnt pull the coil out, just cleaned whatever I could reach with the tank cylinder off, center stem coil & wick still attached. Much better cloud when I exhale, much less burnt taste when I draw on it. It looks like I ought to be ordering some coils and wick, maybe a cleaning on a regular basis? Is there anything else I need or should look for when I order? Im ordering a second itaste mvp, the 2.0 and a couple new tanks just like what Ive got. They dont seem problematic like others Ive read about here. Certain coils any better than others? Cotton wick seem desirable, should I look for that too? Thank You all in advance