Egg-it uv is basically the same product as egg-it with uv strands woven into the yarn.  The uv strands are extremely fine and much work was conducted to achieve the correct balance ov uv an egg-it.   During the testing phase we focussed on not overpowering the egg-it with  UV.   The uv additive stands slightly proud of the core and adds that extra sparkle thats sometimes needed to persuade those finicky fish.