I've found, too, that when I have to start cranking up the power to get the same
vape, it's time to clean.
I'll usually at least clean my clearos every two or
three fills. I'll pull off the air tube, discard the flavor wicks and examine the coil. If it looks "crusty", I'll dry burn. Otherwise, just replace the flavor wicks (I use cotton yarn) and post.
And I'll have to agree that recoiling is actually pretty easy.