I have tested the RRD, CD, HTP, zinc, LX, Premier, CSN, and ECO trying to find a wick that will not mushroom for me in 8oz tins. At this point I am getting the least amount of shroom from the Premier and ECO, but the Premier gives me too deep of a melt pool. I will probably be going with ECO for myself. The problem is every wick seems to give a different performance for each person