More and more people are reporting the same problem...
I gotta tell you that the manufacturing standards to most atties is not the same anymore; and regardless of the mark, brand or model, more and more units do come with this very problem...
So, these are my conclusions; hope it helps:
1. Most of the atties I have been getting lately (all from different vendors; different brands, etc.) have been doing this or behaving in a similar way. And the pattern to each and every one was the following:
A. The heating element was displaced from the center-hole and way way above it. Which, of course, resulted in easy draining and flooding.
B. The fibers held down the bridge were not placed in a 'neet and tidy' way... Thus resulting in a lack of proper wicking properties.
2. The size of drops is taken for granted by most people and two 'average' drops may be way too big sometimes... And there is this 'phenomena' by which when you press a dropper bottle, the drop coming out of it will be seen as the one being dropped, but this is at first sight, because if you take a closer look you will realize that its size will vary cause sometimes a bit more liquid comes in from the bottle neck resulting in a larger drop, some other times less. This is very tricky and will vary not only from dropper to dropper, but from drip to drip. It will go a long way cause maybe you think the two drops were 'regular' in size and the were like 0,5 bigger than thought thus ending up getting three drops...
3. The liquid consistency is to play a mayor part in this all. Whether you liquid is thick or a bit more on the 'liquidy' side shall make a huge difference. The former case being no problem, but the latter resulting in a liquid which is not exactely 'dripping-friendly'.
And, coming back to problems A and B, I think they are the main reason why you are having such a hard time within the priming stage of the dripping process. From the circumstances you describe, you are putting in too much liquid which is not held properly by the atty and you should be careful there, especially when priming after a dry burn, since your atty will work 'differently'. Debridging is a good solution if you wanna fix your coil placement, but OTOH, your atty will only be able to hold one drop and the process is risky. If you are willing to go this way, though, I suggest this alternative: very gently and carefully move the metal mesh covering the metal bridge to one side. Then, carefully remove the fibers and metal flip. Leave the metal wick in its original position after placing very carefully the heating coil covering the center-hole properly. and voila! Of course there will only be a dripping atty after this surgery. As an 'aspirine' alternative simply prime with very few drips at a time and if it still floods try to vape through the fllooding and continue with less drops. The problem is you think that there is no liquid because your atty cannot deal properly with it and you continue dripping... Priming those attties is a PITA for sure.
Get back on how this worked for you.