For those using the Profile RTA and RDA you will notice that the spring pushing up the white plastic block becomes very soft and does not press the cotton firm against the mesh. This results in spitting and/or dry hits.
Here is a quick fix.. (reference attached pics)
1. Find any disposable pen (Bic pens work great)
2. Remove spring from pen
3. Cut spring just after turn three
4. Bend cut end flat
5. Remove white stopper from dec .. (This screws loose anti-clockwise and not clockwise)
6. Insert spring (use the original side of spring not cut side to fit onto stopper)
Problem solved
Here is a quick fix.. (reference attached pics)
1. Find any disposable pen (Bic pens work great)
2. Remove spring from pen
3. Cut spring just after turn three
4. Bend cut end flat
5. Remove white stopper from dec .. (This screws loose anti-clockwise and not clockwise)
6. Insert spring (use the original side of spring not cut side to fit onto stopper)
Problem solved