It's just icky. Shortish lengths works better. Personally, I prefer using the Kreinik glow in the dark stuff. It's definitely better to work with IMSHO, and comes in a handful of colors, and weights. I used the orange and flourescent pale green in a Halloween piece on 18 ct canvas, but they have it in the fine & very fine sizes.
LOL - I can imagine you've been tangling with the DMC stuff. Seriously, try the Kreinik. How soon do you need it - you should be able to get it at any LNS that has their stuff. Else, LMK - if you don't need a lot I can send you from my stash, if you need more, easy enough to get for you. What fabric are you working on?
I tried using this as alternative colorway on a blackwork pumpkin. Thought I could use the whitish color on black fabric. Nope. Anything more than one strand looked horrid as blackwork. And anything less than three didn't have enough glow.
I've used it had no trouble whatsoever with it. It was awhile ago but am sure I used 2 strands and a regular needle - can'r remember what lenght I used.
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