#116 Beaded Vandyke and 117 Bullion Vandyke are two of the latter kind. I did not get on well with them when I first tried as you can read here. I put the blame on being moody and that it hadn't been 'my day'.
I was relieved (I know, not very kind of me!) to hear that others had problems, too, (check out Crazyqstitcher's solution) and felt encourage to give those stitches a second chance. Alas...
In the picture above you can see the beautiful 'hearts' that form on a plain Vandyke stitch, but NEVER on my Bullion version.
I tried to cheat on where to anchor the Bullion by stitching on a piece of cotton instead of even weave, but that didn't help.
However, Linda said the stitches that fail us can turn from failures into successes if you use them in a free form embroidery. So in the end there IS a use for my wonky stitches!