Went
through my weekly deep clean of attys tonight and worked over the two "iffy" Echo-e's while I was at it (using the GoGo instructions mentioned earlier). Fortunately we had some drinking straws that seemed the right size.
On the one with the slightly burned taste, there was a small but noticeable burned spot in one corner of the inner wick and corresponding light burn mark on the fill material. Was able to snip off that small corner of the wick and pick out the burned fill material.
The one with low vapor took several more dry burn attempts than the other before glowing well, making me think the coil wasn't heating up properly before. Other than these two observations the process was fairly straight-forward (if time consuming, being the first attempt).
Reassembly with the straws went well, keeping the wick material slightly damp and the fill patted dry with a paper towel (hoping it will reduce dry time). They seem to be tamped down properly and the center "pipe" is actually centered now (neither was before).
Guess I'll let them air dry until tomorrow and try again to see what happens. Report to follow....
Exhalsior!