You know I have never used Thread Heaven, but after reading so much about it, I have decided to buy some. Ill be curious to see if there are other uses, too.
Dont have much of a problem with metallics, usually just trim the ends until they go through the needle smoothly. I do, however, have trouble with tangles and snagging of silk threads. For that I keep a very small piece of damp sponge on my side table. Running the threads across that seems to tame them down and make them lay nicely.