Just an update: I'm still loving these 1.8 coils. It's really a massive difference between them and the 1.5. I'm finally on my 2nd coil. I think the first one lasted 11 or so days before the flavor started dropping. I probably could have gotten longer out of it, since it just tasted meh, not terrible. I also went through a ton of juice in that time, so I'm at least satisfied with that length of time.
And I got the 4ml extension which has helped a ton with refilling and the warmth. Aside from the faster juice consumption compared to bvc's, I think this tank with the 1.8 coils is far better than any with the BVC coils.
I'm hesitant to say this, since I don't care for Aspire, but these coils and extension have turned this tank into my #1 MTL setup. I've used just about all of the major MTL tanks, and this really is the best at this point in my view. The sad part is...the 1.5's on the standard 2ml it comes with really missed the mark. It can be turned into greatness though.
Ur not referring to the Clapton 1.8 coils, are you?
Im definitely getting the 4ml kit